#57AEBC
Closest named color: Turquoise Blue (#06B1C4). oklch(70.2% 0.086 209.2), rgb(87, 174, 188).
Aa
Black text reads best on this color (8.18:1).
About this color
#57AEBC is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 70%, its chroma 0.086 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.034 away. Black text reads best on it, at 8.18:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.18:1 |
| White text | 2.56:1 |
Values
| HEX | #57AEBC |
| RGB | rgb(87, 174, 188) |
| HSL | hsl(188, 43%, 54%) |
| OKLCH | oklch(70.2% 0.086 209.2) |
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 #57AEBC | 2.56:1 | Fails | Lc -55.1 | Large or bold text, headings |
| Black text on #57AEBC | 8.18:1 | AAA | Lc 54.0 | Large or bold text, headings |
| #57AEBC text on white | 2.56:1 | Fails | Lc 50.0 | Large or bold text, headings |
| #57AEBC text on black | 8.18:1 | AAA | Lc -51.9 | 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DFEDEF
oklch(93.6% 0.015 207.1)
-
Step 200
200
#C4DFE4
oklch(88.5% 0.029 210)
-
Step 300
300
#98CBD3
oklch(80.9% 0.054 208.1)
-
Step 400
400 (this color)
#57AEBC
oklch(70.2% 0.086 209.2)
-
Step 500
500
#009BAD
oklch(63.1% 0.109 209.2)
-
Step 600
600
#008292
oklch(55.6% 0.096 209.8)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900
#004B54
oklch(37.8% 0.065 208.5)
-
Step 950
950
#022C32
oklch(26.9% 0.045 209.3)
#57AEBC 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) | #A1A8BD | 0.082 |
| Deuteranopia (no green cones) | #919DBC | 0.074 |
| Tritanopia (no blue cones) | #00B5B2 | 0.045 |
| Achromatopsia (no color) | #A2A2A2 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57AEBC
#57AEBC
oklch(70.2% 0.086 209.2)
- #CF8B80
#CF8B80
oklch(70.2% 0.085 29.5)
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 #57AEBC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.034
- Greyblue #77A1B5 ΔE 0.043
- Light Sea Green #20B2AA ΔE 0.046
- Bluegrey #85A3B2 ΔE 0.051
- Cadet Blue #5F9EA0 ΔE 0.051
- Topaz #13BBAF ΔE 0.056
- Bluey Grey #89A0B0 ΔE 0.059
- Greeny Blue #42B395 ΔE 0.068
Use #57AEBC 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.