#204A57
Closest named color: Charcoal (#264653). oklch(38.5% 0.051 220.9), rgb(32, 74, 87).
Aa
White text reads best on this color (9.63:1).
About this color
#204A57 is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.051 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.013 away. White text reads best on it, at 9.63:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.17:1 |
| White text | 9.63:1 |
Values
| HEX | #204A57 |
| RGB | rgb(32, 74, 87) |
| HSL | hsl(194, 46%, 23%) |
| OKLCH | oklch(38.5% 0.051 220.9) |
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 #204A57 | 9.63:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #204A57 | 2.17:1 | Fails | Lc 11.8 | Not readable |
| #204A57 text on white | 9.63:1 | AAA | Lc 92.2 | Preferred for body text |
| #204A57 text on black | 2.17:1 | Fails | Lc -10.2 | Not readable |
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 900.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CBDDE3
oklch(88.6% 0.021 219.7)
-
Step 300
300
#A6C7D2
oklch(80.9% 0.039 220)
-
Step 400
400
#75AABC
oklch(70.7% 0.062 221.2)
-
Step 500
500
#4D95AB
oklch(63.2% 0.079 220.2)
-
Step 600
600
#2C7F97
oklch(55.7% 0.086 220.8)
-
Step 700
700
#1D6B80
oklch(49.1% 0.079 220.1)
-
Step 800
800
#1B5768
oklch(42.7% 0.066 220.5)
-
Step 900
900 (this color)
#204A57
oklch(38.5% 0.051 220.9)
-
Step 950
950
#132A32
oklch(27% 0.033 222.8)
#204A57 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) | #424858 | 0.043 |
| Deuteranopia (no green cones) | #3A4257 | 0.038 |
| Tritanopia (no blue cones) | #004E4E | 0.030 |
| Achromatopsia (no color) | #454545 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #204A57
#204A57
oklch(38.5% 0.051 220.9)
- #5B3A2E
#5B3A2E
oklch(38.4% 0.051 40.8)
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 #204A57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.013
- Dark Grey Blue #29465B ΔE 0.018
- Dark Teal #014D4E ΔE 0.028
- Dark Slate Gray #2F4F4F ΔE 0.030
- Deep Teal #00555A ΔE 0.036
- Dark Blue Green #005249 ΔE 0.045
- Charcoal Grey #3C4142 ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.049
Use #204A57 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.