#5777EB
Closest named color: Cornflower (#6A79F7). oklch(60.5% 0.178 269), rgb(87, 119, 235).
Aa
Black text reads best on this color (5.24:1).
About this color
#5777EB is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.178 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.030 away. Black text reads best on it, at 5.24:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.178) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.24:1 |
| White text | 4.00:1 |
Values
| HEX | #5777EB |
| RGB | rgb(87, 119, 235) |
| HSL | hsl(227, 79%, 63%) |
| OKLCH | oklch(60.5% 0.178 269) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #5777EB | 4.00:1 | AA large text | Lc -72.5 | Content text, not long reading |
| Black text on #5777EB | 5.24:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #5777EB text on white | 4.00:1 | AA large text | Lc 67.0 | Content text, not long reading |
| #5777EB text on black | 5.24:1 | AA | Lc -34.6 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CCD9FA
oklch(88.6% 0.048 268.4)
-
Step 300
300
#A9BFFA
oklch(80.9% 0.087 268.6)
-
Step 400
400
#7D9BF7
oklch(70.6% 0.139 269)
-
Step 500
500 (this color)
#5777EB
oklch(60.5% 0.178 269)
-
Step 600
600
#4765E3
oklch(55.6% 0.194 269.1)
-
Step 700
700
#3953C5
oklch(49.2% 0.18 269)
-
Step 800
800
#2F459F
oklch(42.8% 0.148 268.9)
-
Step 900
900
#293B7E
oklch(37.7% 0.115 269)
-
Step 950
950
#18234A
oklch(27% 0.074 269.2)
#5777EB with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #3786EF | 0.042 |
| Deuteranopia (no green cones) | #0E79E9 | 0.049 |
| Tritanopia (no blue cones) | #0092A6 | 0.150 |
| Achromatopsia (no color) | #7F7F7F | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5777EB
#5777EB
oklch(60.5% 0.178 269)
- #A07D00
#A07D00
oklch(60.6% 0.124 88.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #5777EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.030
- Clear Blue #247AFD ΔE 0.046
- Royal Blue #4169E1 ΔE 0.047
- Soft Blue #6488EA ΔE 0.049
- Medium Slate Blue #7B68EE ΔE 0.056
- Neon Blue #4361EE ΔE 0.061
- Dark Sky Blue #448EE4 ΔE 0.062
- Cerulean Blue #056EEE ΔE 0.062
Use #5777EB in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.