#204F71
Closest named color: Deep Sea Blue (#015482). oklch(41.2% 0.076 243.2), rgb(32, 79, 113).
Aa
White text reads best on this color (8.68:1).
About this color
#204F71 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.076 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.030 away. White text reads best on it, at 8.68:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.41:1 |
| White text | 8.68:1 |
Values
| HEX | #204F71 |
| RGB | rgb(32, 79, 113) |
| HSL | hsl(205, 56%, 28%) |
| OKLCH | oklch(41.2% 0.076 243.2) |
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 #204F71 | 8.68:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #204F71 | 2.41:1 | Fails | Lc 14.4 | Not readable |
| #204F71 text on white | 8.68:1 | AAA | Lc 89.6 | Fine for body text |
| #204F71 text on black | 2.41:1 | Fails | Lc -12.7 | 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 800.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE9
oklch(88.4% 0.025 246.2)
-
Step 300
300
#A9C5DC
oklch(81% 0.045 243.1)
-
Step 400
400
#79A6CA
oklch(70.6% 0.072 243.1)
-
Step 500
500
#5590BD
oklch(63.2% 0.092 243)
-
Step 600
600
#3879A9
oklch(55.5% 0.1 243.4)
-
Step 700
700
#2A6691
oklch(49.1% 0.093 243.1)
-
Step 800
800 (this color)
#204F71
oklch(41.2% 0.076 243.2)
-
Step 900
900
#23455F
oklch(37.7% 0.06 243.4)
-
Step 950
950
#152937
oklch(27.1% 0.037 240.5)
#204F71 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) | #405073 | 0.037 |
| Deuteranopia (no green cones) | #344870 | 0.027 |
| Tritanopia (no blue cones) | #00575B | 0.054 |
| Achromatopsia (no color) | #4B4B4B | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #204F71
#204F71
oklch(41.2% 0.076 243.2)
- #684119
#684119
oklch(41.3% 0.077 63.2)
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 #204F71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.030
- Light Navy #155084 ΔE 0.032
- Dark Grey Blue #29465B ΔE 0.041
- Twilight Blue #0A437A ΔE 0.047
- Dusk Blue #26538D ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.050
- Charcoal #264653 ΔE 0.052
- Deep Teal #00555A ΔE 0.052
Use #204F71 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.