#57808F
Closest named color: Grey Blue (#647D8E). oklch(57.5% 0.051 222.8), rgb(87, 128, 143).
Aa
Black text reads best on this color (4.88:1).
About this color
#57808F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 58%, its chroma 0.051 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.017 away. Black text reads best on it, at 4.88:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.88:1 |
| White text | 4.29:1 |
Values
| HEX | #57808F |
| RGB | rgb(87, 128, 143) |
| HSL | hsl(196, 24%, 45%) |
| OKLCH | oklch(57.5% 0.051 222.8) |
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 #57808F | 4.29:1 | AA large text | Lc -75.1 | Fine for body text |
| Black text on #57808F | 4.88:1 | AA | Lc 34.4 | Non-text elements, placeholder text |
| #57808F text on white | 4.29:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #57808F text on black | 4.88:1 | AA | Lc -32.0 | 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 600.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#D1DBDF
oklch(88.5% 0.012 223.5)
-
Step 300
300
#B1C4CB
oklch(80.8% 0.023 221.9)
-
Step 400
400
#88A6B1
oklch(70.6% 0.037 222.1)
-
Step 500
500
#6A909E
oklch(63% 0.047 222.7)
-
Step 600
600 (this color)
#57808F
oklch(57.5% 0.051 222.8)
-
Step 700
700
#426774
oklch(49.1% 0.047 222.1)
-
Step 800
800
#37545F
oklch(42.8% 0.039 223.7)
-
Step 900
900
#2F454D
oklch(37.5% 0.031 222.5)
-
Step 950
950
#1C292D
oklch(27.1% 0.019 218.7)
#57808F 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) | #777E90 | 0.041 |
| Deuteranopia (no green cones) | #6F778F | 0.038 |
| Tritanopia (no blue cones) | #428585 | 0.033 |
| Achromatopsia (no color) | #7A7A7A | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57808F
#57808F
oklch(57.5% 0.051 222.8)
- #947061
#947061
oklch(57.7% 0.051 43.7)
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 #57808F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.017
- Battleship Grey #6B7C85 ΔE 0.027
- Stormy Blue #507B9C ΔE 0.030
- Slate Gray #708090 ΔE 0.032
- Steel Grey #6F828A ΔE 0.032
- Cerulean #457B9D ΔE 0.035
- Battleship Gray #6C757D ΔE 0.040
- Steel #738595 ΔE 0.041
Use #57808F 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.