#57AAA8
Closest named color: Cadet Blue (#5F9EA0). oklch(68.6% 0.081 193.4), rgb(87, 170, 168).
Aa
Black text reads best on this color (7.72:1).
About this color
#57AAA8 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.081 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.033 away. Black text reads best on it, at 7.72:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 7.72:1 |
| White text | 2.72:1 |
Values
| HEX | #57AAA8 |
| RGB | rgb(87, 170, 168) |
| HSL | hsl(179, 33%, 50%) |
| OKLCH | oklch(68.6% 0.081 193.4) |
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 #57AAA8 | 2.72:1 | Fails | Lc -57.7 | Large or bold text, headings |
| Black text on #57AAA8 | 7.72:1 | AAA | Lc 51.5 | Large or bold text, headings |
| #57AAA8 text on white | 2.72:1 | Fails | Lc 52.5 | Large or bold text, headings |
| #57AAA8 text on black | 7.72:1 | AAA | Lc -49.4 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#DFEDEC
oklch(93.5% 0.015 191.8)
-
Step 200
200
#C5DFDE
oklch(88.4% 0.028 193.8)
-
Step 300
300
#9BCBCA
oklch(80.8% 0.05 194.6)
-
Step 400
400 (this color)
#57AAA8
oklch(68.6% 0.081 193.4)
-
Step 500
500
#199D9B
oklch(63.2% 0.104 193.2)
-
Step 600
600
#008483
oklch(55.5% 0.095 193.8)
-
Step 700
700
#006F6E
oklch(49% 0.084 193.7)
-
Step 800
800
#005B5A
oklch(42.6% 0.073 193.5)
-
Step 900
900
#004C4B
oklch(37.7% 0.064 193.2)
-
Step 950
950
#052D2C
oklch(27% 0.043 192.4)
#57AAA8 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) | #A1A3A8 | 0.085 |
| Deuteranopia (no green cones) | #9398A9 | 0.080 |
| Tritanopia (no blue cones) | #25AEA9 | 0.030 |
| Achromatopsia (no color) | #9D9D9D | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57AAA8
#57AAA8
oklch(68.6% 0.081 193.4)
- #C7858B
#C7858B
oklch(68.5% 0.082 13.5)
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 #57AAA8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.033
- Light Sea Green #20B2AA ΔE 0.034
- Dull Teal #5F9E8F ΔE 0.041
- Turquoise Blue #06B1C4 ΔE 0.047
- Greeny Blue #42B395 ΔE 0.047
- Greyblue #77A1B5 ΔE 0.049
- Grey Teal #5E9B8A ΔE 0.051
- Topaz #13BBAF ΔE 0.052
Use #57AAA8 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.