#57A7EA
Closest named color: Cornflower Blue (#6495ED). oklch(70.6% 0.126 246.1), rgb(87, 167, 234).
Aa
Black text reads best on this color (8.12:1).
About this color
#57A7EA is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.126 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.050 away. Black text reads best on it, at 8.12:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.12:1 |
| White text | 2.58:1 |
Values
| HEX | #57A7EA |
| RGB | rgb(87, 167, 234) |
| HSL | hsl(207, 78%, 63%) |
| OKLCH | oklch(70.6% 0.126 246.1) |
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 #57A7EA | 2.58:1 | Fails | Lc -55.4 | Large or bold text, headings |
| Black text on #57A7EA | 8.12:1 | AAA | Lc 53.7 | Large or bold text, headings |
| #57A7EA text on white | 2.58:1 | Fails | Lc 50.3 | Large or bold text, headings |
| #57A7EA text on black | 8.12:1 | AAA | Lc -51.6 | Large or bold text, headings |
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 400.
-
Step 50
50
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DEECF9
oklch(93.6% 0.023 246)
-
Step 200
200
#C2DDF5
oklch(88.5% 0.044 245.1)
-
Step 300
300
#97C6F1
oklch(80.9% 0.079 246.6)
-
Step 400
400 (this color)
#57A7EA
oklch(70.6% 0.126 246.1)
-
Step 500
500
#068FE4
oklch(63.1% 0.162 246.2)
-
Step 600
600
#0078C1
oklch(55.5% 0.143 246.2)
-
Step 700
700
#0065A3
oklch(49.1% 0.126 245.9)
-
Step 800
800
#005287
oklch(42.6% 0.111 246.5)
-
Step 900
900
#004572
oklch(37.9% 0.097 246)
-
Step 950
950
#022845
oklch(26.9% 0.068 246.8)
#57A7EA 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) | #8AA9ED | 0.054 |
| Deuteranopia (no green cones) | #769BE9 | 0.041 |
| Tritanopia (no blue cones) | #00B7BE | 0.097 |
| Achromatopsia (no color) | #A1A1A1 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57A7EA
#57A7EA
oklch(70.6% 0.126 246.1)
- #D58F40
#D58F40
oklch(70.6% 0.126 66.2)
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 #57A7EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.050
- Chefchaouen Blue #4895EF ΔE 0.055
- Deep Sky Blue #00BFFF ΔE 0.066
- Dark Sky Blue #448EE4 ΔE 0.072
- Periwinkle Blue #8F99FB ΔE 0.075
- Carolina Blue #8AB8FE ΔE 0.077
- Greyblue #77A1B5 ΔE 0.079
- Turquoise Blue #06B1C4 ΔE 0.080
Use #57A7EA 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.