#204B6A
Closest named color: Dark Grey Blue (#29465B). oklch(39.8% 0.071 242.8), rgb(32, 75, 106).
Aa
White text reads best on this color (9.22:1).
About this color
#204B6A is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.071 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.027 away. White text reads best on it, at 9.22:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.27:1 |
| White text | 9.22:1 |
Values
| HEX | #204B6A |
| RGB | rgb(32, 75, 106) |
| HSL | hsl(205, 54%, 27%) |
| OKLCH | oklch(39.8% 0.071 242.8) |
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 #204B6A | 9.22:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #204B6A | 2.27:1 | Fails | Lc 12.9 | Not readable |
| #204B6A text on white | 9.22:1 | AAA | Lc 91.1 | Preferred for body text |
| #204B6A text on black | 2.27:1 | Fails | Lc -11.3 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C9DCEB
oklch(88.5% 0.029 241.6)
-
Step 300
300
#A4C5E1
oklch(80.9% 0.053 244.1)
-
Step 400
400
#70A7D2
oklch(70.7% 0.086 242.9)
-
Step 500
500
#4790C6
oklch(63% 0.109 243.2)
-
Step 600
600
#247AB2
oklch(55.6% 0.117 242.5)
-
Step 700
700
#146699
oklch(49% 0.11 242.7)
-
Step 800
800
#15547C
oklch(42.8% 0.09 242)
-
Step 900
900 (this color)
#204B6A
oklch(39.8% 0.071 242.8)
-
Step 950
950
#11293B
oklch(27.1% 0.045 243.2)
#204B6A 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) | #3D4B6B | 0.034 |
| Deuteranopia (no green cones) | #334469 | 0.028 |
| Tritanopia (no blue cones) | #005356 | 0.052 |
| Achromatopsia (no color) | #474747 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #204B6A
#204B6A
oklch(39.8% 0.071 242.8)
- #623E1A
#623E1A
oklch(39.8% 0.071 63.1)
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 #204B6A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.027
- Charcoal #264653 ΔE 0.039
- Light Navy #155084 ΔE 0.043
- Deep Sea Blue #015482 ΔE 0.044
- Twilight Blue #0A437A ΔE 0.044
- Deep Teal #00555A ΔE 0.051
- Dark Slate Gray #2F4F4F ΔE 0.053
- Dark Teal #014D4E ΔE 0.056
Use #204B6A 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.