Sampled from 3 of 코스모스 LXP's App Store screenshots — background, accent and theme, measured by LaunchShots (not something Apple publishes).
#ECECEC bg
#CFCFCF
#1484FC accent
#111111 text
Reading the caption text from the screenshots in your browser…
코스모스(COURSEMOS)앱을 통해 언제 어디서나 학습하세요. 코스모스 앱을 이용하면 현재 수강하고 있는 강의를 확인하여 수업자료를 열람하고 학습활동에 참여할 수 있습니다. 새로운 학습활동이나 수업자료가 등록 되었을 때 PUSH 알림이 발송되어 빠르게 내용을 확인할 수 있습니다. 코스모스 앱으로 같이 학습하는 친구들과 소통하고 학습 일정도 관리하세요. ■ 사용 가능 기관 리스트 강원대학교 대구한의대학교 목원대학교 서울시립대학교 인천대학교 전북대학교 (2026년 4월)
Every shipping app on the App Store has gone through the same decisions you're working through right now: which screenshot goes first, what caption sits over it, which device frame to show, what color the background should be. The 6 screenshots above are 코스모스 LXP's answers to those questions — they're public, they're real, and they made it through Apple's review.
What the numbers say: 코스모스 LXP runs a light set with one background colour (#ECECEC) carried across every screenshot — the listing reads as a single poster when the shots sit side by side in search results. The accent colour we picked up, #1484FC, is the one to reuse for badges, arrows and highlighted words if you borrow this look. Hit Use this style to open the editor with these exact colours and drop your own screenshot in.
Notice the first screenshot in particular. It's the one users see in search results and on the product page, and it's where most apps spend their best caption and tightest design. Look at the proportion of background to phone, where the text sits, what one thing the image is trying to communicate.
Want to see how other Education apps approach the same problem? Browse more Education apps in the showcase.
Open LaunchShots and design your App Store & Google Play screenshots — pick a device frame, drop captions, ship in minutes. Free, in your browser.
Open the screenshot editor →Closest background + accent colours among the listings we've analysed — useful when you want to see the same palette handled by a different team.