#57AAA6
Closest named color: Cadet Blue (#5F9EA0). oklch(68.5% 0.081 191.3), rgb(87, 170, 166).
Aa
Black text reads best on this color (7.70:1).
About this color
#57AAA6 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.081 and its hue 191°. 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 7.70:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 7.70:1 |
| White text | 2.72:1 |
Values
| HEX | #57AAA6 |
| RGB | rgb(87, 170, 166) |
| HSL | hsl(177, 33%, 50%) |
| OKLCH | oklch(68.5% 0.081 191.3) |
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 #57AAA6 | 2.72:1 | Fails | Lc -57.8 | Large or bold text, headings |
| Black text on #57AAA6 | 7.70:1 | AAA | Lc 51.4 | Large or bold text, headings |
| #57AAA6 text on white | 2.72:1 | Fails | Lc 52.6 | Large or bold text, headings |
| #57AAA6 text on black | 7.70:1 | AAA | Lc -49.3 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
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
#9BCCC8
oklch(81% 0.051 190)
-
Step 400
400 (this color)
#57AAA6
oklch(68.5% 0.081 191.3)
-
Step 500
500
#1A9D99
oklch(63.1% 0.104 191.5)
-
Step 600
600
#008581
oklch(55.7% 0.096 191.1)
-
Step 700
700
#00706C
oklch(49.2% 0.085 190.4)
-
Step 800
800
#005B59
oklch(42.6% 0.073 192.2)
-
Step 900
900
#004C4A
oklch(37.6% 0.065 191.7)
-
Step 950
950
#052D2C
oklch(27% 0.043 192.4)
#57AAA6 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) | #A2A3A6 | 0.086 |
| Deuteranopia (no green cones) | #9498A7 | 0.082 |
| Tritanopia (no blue cones) | #27AEA9 | 0.028 |
| Achromatopsia (no color) | #9D9D9D | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57AAA6
#57AAA6
oklch(68.5% 0.081 191.3)
- #C6858D
#C6858D
oklch(68.5% 0.081 11.3)
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 #57AAA6, 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 0.040
- Greeny Blue #42B395 ΔE 0.045
- Turquoise Blue #06B1C4 ΔE 0.049
- Grey Teal #5E9B8A ΔE 0.049
- Greyblue #77A1B5 ΔE 0.051
- Topaz #13BBAF ΔE 0.051
Use #57AAA6 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.