#57909B
Closest named color: Dusty Teal (#4C9085). oklch(61.8% 0.062 211.2), rgb(87, 144, 155).
Aa
Black text reads best on this color (5.86:1).
About this color
#57909B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 62%, its chroma 0.062 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.037 away. Black text reads best on it, at 5.86:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (62%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.86:1 |
| White text | 3.57:1 |
Values
| HEX | #57909B |
| RGB | rgb(87, 144, 155) |
| HSL | hsl(190, 28%, 47%) |
| OKLCH | oklch(61.8% 0.062 211.2) |
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 #57909B | 3.57:1 | AA large text | Lc -68.8 | Content text, not long reading |
| Black text on #57909B | 5.86:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #57909B text on white | 3.57:1 | AA large text | Lc 63.3 | Content text, not long reading |
| #57909B text on black | 5.86:1 | AA | Lc -38.4 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E4EBED
oklch(93.5% 0.008 216.6)
-
Step 200
200
#CDDCDF
oklch(88.4% 0.017 211)
-
Step 300
300
#ABC6CC
oklch(80.8% 0.03 212.6)
-
Step 400
400
#7EA9B2
oklch(70.7% 0.048 212)
-
Step 500
500 (this color)
#57909B
oklch(61.8% 0.062 211.2)
-
Step 600
600
#3F7E8A
oklch(55.6% 0.067 211.5)
-
Step 700
700
#306A75
oklch(49% 0.063 211.7)
-
Step 800
800
#29575F
oklch(42.8% 0.052 210.2)
-
Step 900
900
#26474E
oklch(37.6% 0.04 212.8)
-
Step 950
950
#172A2E
oklch(27.1% 0.026 212.5)
#57909B 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) | #878C9C | 0.059 |
| Deuteranopia (no green cones) | #7C849B | 0.053 |
| Tritanopia (no blue cones) | #389593 | 0.034 |
| Achromatopsia (no color) | #878787 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57909B
#57909B
oklch(61.8% 0.062 211.2)
- #A8786F
#A8786F
oklch(61.9% 0.062 30.8)
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 #57909B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.037
- Blue Grey #758DA3 ΔE 0.039
- Sea #3C9992 ΔE 0.040
- Steel #738595 ΔE 0.041
- Light Slate Gray #778899 ΔE 0.041
- Cadet Blue #5F9EA0 ΔE 0.042
- Steel Grey #6F828A ΔE 0.045
- Teal Green #0A9396 ΔE 0.046
Use #57909B 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.