#57A4CD
Closest named color: Greyblue (#77A1B5). oklch(68.6% 0.097 233.9), rgb(87, 164, 205).
Aa
Black text reads best on this color (7.59:1).
About this color
#57A4CD is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.097 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.043 away. Black text reads best on it, at 7.59:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.59:1 |
| White text | 2.76:1 |
Values
| HEX | #57A4CD |
| RGB | rgb(87, 164, 205) |
| HSL | hsl(201, 54%, 57%) |
| OKLCH | oklch(68.6% 0.097 233.9) |
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 #57A4CD | 2.76:1 | Fails | Lc -58.4 | Large or bold text, headings |
| Black text on #57A4CD | 7.59:1 | AAA | Lc 50.9 | Large or bold text, headings |
| #57A4CD text on white | 2.76:1 | Fails | Lc 53.2 | Large or bold text, headings |
| #57A4CD text on black | 7.59:1 | AAA | Lc -48.7 | 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
#F0F6FA
oklch(97% 0.008 236.6)
-
Step 100
100
#DFECF4
oklch(93.6% 0.018 234.5)
-
Step 200
200
#C4DDEC
oklch(88.4% 0.034 234.1)
-
Step 300
300
#9AC8E2
oklch(80.9% 0.061 233.3)
-
Step 400
400 (this color)
#57A4CD
oklch(68.6% 0.097 233.9)
-
Step 500
500
#1E95C9
oklch(63.2% 0.124 233.8)
-
Step 600
600
#007DAC
oklch(55.5% 0.116 233.8)
-
Step 700
700
#006992
oklch(49.1% 0.103 234.3)
-
Step 800
800
#005678
oklch(42.7% 0.089 233.9)
-
Step 900
900
#004865
oklch(37.8% 0.079 233.7)
-
Step 950
950
#052A3C
oklch(27% 0.052 234.9)
#57A4CD 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) | #90A2CF | 0.062 |
| Deuteranopia (no green cones) | #8096CC | 0.054 |
| Tritanopia (no blue cones) | #00AFB2 | 0.070 |
| Achromatopsia (no color) | #9B9B9B | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57A4CD
#57A4CD
oklch(68.6% 0.097 233.9)
- #C9895F
#C9895F
oklch(68.5% 0.097 53.7)
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 #57A4CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.043
- Turquoise Blue #06B1C4 ΔE 0.053
- Bluegrey #85A3B2 ΔE 0.059
- Bluey Grey #89A0B0 ΔE 0.063
- Cadet Blue #5F9EA0 ΔE 0.065
- Faded Blue #658CBB ΔE 0.065
- Cool Gray #8D99AE ΔE 0.069
- Cornflower Blue #6495ED ΔE 0.072
Use #57A4CD 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.