#57BBCA
Closest named color: Turquoise Blue (#06B1C4). oklch(73.8% 0.095 208.5), rgb(87, 187, 202).
Aa
Black text reads best on this color (9.36:1).
About this color
#57BBCA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.095 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.049 away. Black text reads best on it, at 9.36:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 9.36:1 |
| White text | 2.24:1 |
Values
| HEX | #57BBCA |
| RGB | rgb(87, 187, 202) |
| HSL | hsl(188, 52%, 57%) |
| OKLCH | oklch(73.8% 0.095 208.5) |
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 #57BBCA | 2.24:1 | Fails | Lc -48.8 | Large or bold text, headings |
| Black text on #57BBCA | 9.36:1 | AAA | Lc 60.0 | Content text, not long reading |
| #57BBCA text on white | 2.24:1 | Fails | Lc 44.0 | Non-text elements, placeholder text |
| #57BBCA text on black | 9.36:1 | AAA | Lc -58.2 | 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
#DDEDF0
oklch(93.5% 0.017 210.2)
-
Step 200
200
#C1E0E5
oklch(88.6% 0.033 208.4)
-
Step 300
300
#93CCD5
oklch(80.9% 0.06 208.2)
-
Step 400
400 (this color)
#57BBCA
oklch(73.8% 0.095 208.5)
-
Step 500
500
#009BAC
oklch(63.1% 0.109 208.4)
-
Step 600
600
#008291
oklch(55.5% 0.096 208.9)
-
Step 700
700
#006E7A
oklch(49.2% 0.085 207.9)
-
Step 800
800
#005A64
oklch(42.8% 0.073 207.9)
-
Step 900
900
#004B54
oklch(37.8% 0.065 208.5)
-
Step 950
950
#002C32
oklch(26.8% 0.046 208.8)
#57BBCA 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) | #ADB5CB | 0.092 |
| Deuteranopia (no green cones) | #9BA7CA | 0.084 |
| Tritanopia (no blue cones) | #00C2BF | 0.043 |
| Achromatopsia (no color) | #ADADAD | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57BBCA
#57BBCA
oklch(73.8% 0.095 208.5)
- #E09388
#E09388
oklch(73.8% 0.095 28.5)
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 #57BBCA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.049
- Dark Turquoise #00CED1 ΔE 0.055
- Topaz #13BBAF ΔE 0.055
- Vivid Sky Blue #4CC9F0 ΔE 0.058
- Medium Turquoise #48D1CC ΔE 0.061
- Light Sea Green #20B2AA ΔE 0.062
- Greyblue #77A1B5 ΔE 0.071
- Bluegrey #85A3B2 ΔE 0.072
Use #57BBCA 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.