#57A3C4
Closest named color: Greyblue (#77A1B5). oklch(68% 0.09 228.5), rgb(87, 163, 196).
Aa
Black text reads best on this color (7.44:1).
About this color
#57A3C4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.090 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.036 away. Black text reads best on it, at 7.44:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.44:1 |
| White text | 2.82:1 |
Values
| HEX | #57A3C4 |
| RGB | rgb(87, 163, 196) |
| HSL | hsl(198, 48%, 55%) |
| OKLCH | oklch(68% 0.09 228.5) |
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 #57A3C4 | 2.82:1 | Fails | Lc -59.3 | Large or bold text, headings |
| Black text on #57A3C4 | 7.44:1 | AAA | Lc 50.0 | Large or bold text, headings |
| #57A3C4 text on white | 2.82:1 | Fails | Lc 54.0 | Large or bold text, headings |
| #57A3C4 text on black | 7.44:1 | AAA | Lc -47.8 | 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
#F1F7F9
oklch(97.2% 0.007 219.6)
-
Step 100
100
#DFECF3
oklch(93.5% 0.017 230.9)
-
Step 200
200
#C5DEEA
oklch(88.6% 0.031 228.2)
-
Step 300
300
#9BC8DE
oklch(80.8% 0.057 229.4)
-
Step 400
400 (this color)
#57A3C4
oklch(68% 0.09 228.5)
-
Step 500
500
#2396C0
oklch(63.1% 0.115 228.5)
-
Step 600
600
#007FA5
oklch(55.7% 0.108 227.8)
-
Step 700
700
#006A8C
oklch(49% 0.097 229.1)
-
Step 800
800
#005773
oklch(42.7% 0.084 228.5)
-
Step 900
900
#004860
oklch(37.5% 0.074 228.7)
-
Step 950
950
#062B39
oklch(27.1% 0.048 228.1)
#57A3C4 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) | #92A0C6 | 0.066 |
| Deuteranopia (no green cones) | #8295C4 | 0.057 |
| Tritanopia (no blue cones) | #00ACAE | 0.062 |
| Achromatopsia (no color) | #9A9A9A | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57A3C4
#57A3C4
oklch(68% 0.09 228.5)
- #C68767
#C68767
oklch(67.9% 0.09 47.7)
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 #57A3C4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.036
- Turquoise Blue #06B1C4 ΔE 0.049
- Cadet Blue #5F9EA0 ΔE 0.052
- Bluegrey #85A3B2 ΔE 0.053
- Bluey Grey #89A0B0 ΔE 0.057
- Faded Blue #658CBB ΔE 0.062
- Cool Gray #8D99AE ΔE 0.064
- Silver Lake Blue #778DA9 ΔE 0.066
Use #57A3C4 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.