#204555
Closest named color: Charcoal (#264653). oklch(37% 0.05 228.6), rgb(32, 69, 85).
Aa
White text reads best on this color (10.27:1).
About this color
#204555 is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.050 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.008 away. White text reads best on it, at 10.27:1.
| Hue family | Teals and cyans |
| Lightness | dark (37%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.04:1 |
| White text | 10.27:1 |
Values
| HEX | #204555 |
| RGB | rgb(32, 69, 85) |
| HSL | hsl(198, 45%, 23%) |
| OKLCH | oklch(37% 0.05 228.6) |
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 #204555 | 10.27:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #204555 | 2.04:1 | Fails | Lc 10.2 | Not readable |
| #204555 text on white | 10.27:1 | AAA | Lc 93.7 | Preferred for body text |
| #204555 text on black | 2.04:1 | Fails | Lc -8.8 | 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
#CCDCE4
oklch(88.5% 0.02 229.1)
-
Step 300
300
#A8C6D4
oklch(80.9% 0.038 227.7)
-
Step 400
400
#79A8BF
oklch(70.6% 0.06 229.8)
-
Step 500
500
#5493AF
oklch(63.2% 0.077 228.6)
-
Step 600
600
#367D9A
oklch(55.7% 0.083 228)
-
Step 700
700
#276984
oklch(49.1% 0.078 228.7)
-
Step 800
800
#22566B
oklch(42.8% 0.065 227.8)
-
Step 900
900 (this color)
#204555
oklch(37% 0.05 228.6)
-
Step 950
950
#152A33
oklch(27.2% 0.032 227.5)
#204555 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) | #3D4456 | 0.037 |
| Deuteranopia (no green cones) | #353E55 | 0.032 |
| Tritanopia (no blue cones) | #004A4A | 0.035 |
| Achromatopsia (no color) | #414141 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #204555
#204555
oklch(37% 0.05 228.6)
- #563828
#563828
oklch(37.2% 0.05 48.8)
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 #204555, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.008
- Dark Grey Blue #29465B ΔE 0.015
- Dark Blue Grey #1F3B4D ΔE 0.033
- Dark Teal #014D4E ΔE 0.036
- Midnight Green #073B4C ΔE 0.042
- Dark Slate Gray #2F4F4F ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.044
- Onyx #343A40 ΔE 0.046
Use #204555 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.