#204151
Closest named color: Charcoal (#264653). oklch(35.8% 0.048 231.2), rgb(32, 65, 81).
Aa
White text reads best on this color (10.84:1).
About this color
#204151 is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.048 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.019 away. White text reads best on it, at 10.84:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.93:1 |
| White text | 10.84:1 |
Values
| HEX | #204151 |
| RGB | rgb(32, 65, 81) |
| HSL | hsl(200, 43%, 22%) |
| OKLCH | oklch(35.8% 0.048 231.2) |
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 #204151 | 10.84:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #204151 | 1.93:1 | Fails | Lc 8.9 | Not readable |
| #204151 text on white | 10.84:1 | AAA | Lc 95.0 | Preferred for body text |
| #204151 text on black | 1.93:1 | Fails | Lc -7.6 | 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
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CDDCE4
oklch(88.6% 0.02 230.7)
-
Step 300
300
#AAC5D4
oklch(80.8% 0.036 232.2)
-
Step 400
400
#7CA8BE
oklch(70.8% 0.057 230.2)
-
Step 500
500
#5992AE
oklch(63.2% 0.073 230.8)
-
Step 600
600
#3D7C99
oklch(55.7% 0.079 230.3)
-
Step 700
700
#2E6883
oklch(49.1% 0.074 231.1)
-
Step 800
800
#28556A
oklch(42.7% 0.06 230.7)
-
Step 900
900 (this color)
#204151
oklch(35.8% 0.048 231.2)
-
Step 950
950
#162933
oklch(26.9% 0.031 232.5)
#204151 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) | #394052 | 0.033 |
| Deuteranopia (no green cones) | #323B51 | 0.028 |
| Tritanopia (no blue cones) | #004546 | 0.035 |
| Achromatopsia (no color) | #3D3D3D | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #204151
#204151
oklch(35.8% 0.048 231.2)
- #513525
#513525
oklch(35.8% 0.048 50.4)
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 #204151, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.019
- Dark Blue Grey #1F3B4D ΔE 0.020
- Dark Grey Blue #29465B ΔE 0.025
- Midnight Green #073B4C ΔE 0.031
- Onyx #343A40 ΔE 0.037
- Charcoal Grey #3C4142 ΔE 0.043
- Dark Teal #014D4E ΔE 0.044
- Prussian Blue #1D3557 ΔE 0.044
Use #204151 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.