#57A4E1
Closest named color: Cornflower Blue (#6495ED). oklch(69.5% 0.118 244.6), rgb(87, 164, 225).
Aa
Black text reads best on this color (7.80:1).
About this color
#57A4E1 is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.118 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.049 away. Black text reads best on it, at 7.80:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.80:1 |
| White text | 2.69:1 |
Values
| HEX | #57A4E1 |
| RGB | rgb(87, 164, 225) |
| HSL | hsl(207, 70%, 61%) |
| OKLCH | oklch(69.5% 0.118 244.6) |
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 #57A4E1 | 2.69:1 | Fails | Lc -57.2 | Large or bold text, headings |
| Black text on #57A4E1 | 7.80:1 | AAA | Lc 52.0 | Large or bold text, headings |
| #57A4E1 text on white | 2.69:1 | Fails | Lc 52.0 | Large or bold text, headings |
| #57A4E1 text on black | 7.80:1 | AAA | Lc -49.9 | 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
#DFECF8
oklch(93.7% 0.021 245.9)
-
Step 200
200
#C3DDF3
oklch(88.5% 0.041 243.7)
-
Step 300
300
#98C6EE
oklch(80.8% 0.075 245.2)
-
Step 400
400 (this color)
#57A4E1
oklch(69.5% 0.118 244.6)
-
Step 500
500
#1790DD
oklch(63% 0.151 244.5)
-
Step 600
600
#0079BE
oklch(55.6% 0.139 244.6)
-
Step 700
700
#0066A1
oklch(49.2% 0.123 244.5)
-
Step 800
800
#005385
oklch(42.7% 0.107 244.8)
-
Step 900
900
#004570
oklch(37.7% 0.095 244.9)
-
Step 950
950
#042942
oklch(27% 0.061 243.6)
#57A4E1 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) | #89A5E4 | 0.054 |
| Deuteranopia (no green cones) | #7798E0 | 0.042 |
| Tritanopia (no blue cones) | #00B3B9 | 0.092 |
| Achromatopsia (no color) | #9E9E9E | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57A4E1
#57A4E1
oklch(69.5% 0.118 244.6)
- #CF8C47
#CF8C47
oklch(69.4% 0.118 64.4)
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 #57A4E1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.049
- Chefchaouen Blue #4895EF ΔE 0.053
- Dark Sky Blue #448EE4 ΔE 0.066
- Greyblue #77A1B5 ΔE 0.068
- Turquoise Blue #06B1C4 ΔE 0.074
- Faded Blue #658CBB ΔE 0.075
- Deep Sky Blue #00BFFF ΔE 0.076
- Soft Blue #6488EA ΔE 0.079
Use #57A4E1 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.