#202539
Closest named color: Oxford Blue (#1B263B). oklch(26.9% 0.038 272.9), rgb(32, 37, 57).
Aa
White text reads best on this color (15.16:1).
About this color
#202539 is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.038 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.008 away. White text reads best on it, at 15.16:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.38:1 |
| White text | 15.16:1 |
Values
| HEX | #202539 |
| RGB | rgb(32, 37, 57) |
| HSL | hsl(228, 28%, 17%) |
| OKLCH | oklch(26.9% 0.038 272.9) |
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 #202539 | 15.16:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #202539 | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #202539 text on white | 15.16:1 | AAA | Lc 102.0 | Preferred for body text |
| #202539 text on black | 1.38:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D3D8EA
oklch(88.4% 0.025 273.5)
-
Step 300
300
#B6BFDF
oklch(80.8% 0.046 272.9)
-
Step 400
400
#919ECE
oklch(70.7% 0.072 272.7)
-
Step 500
500
#7786C2
oklch(63.2% 0.092 272.8)
-
Step 600
600
#606FAE
oklch(55.7% 0.1 272.6)
-
Step 700
700
#4F5C95
oklch(49% 0.093 272.8)
-
Step 800
800
#414C79
oklch(42.8% 0.076 272.4)
-
Step 900
900
#373F62
oklch(37.7% 0.061 273.3)
-
Step 950
950 (this color)
#202539
oklch(26.9% 0.038 272.9)
#202539 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) | #1E273A | 0.007 |
| Deuteranopia (no green cones) | #1C2539 | 0.006 |
| Tritanopia (no blue cones) | #18292C | 0.035 |
| Achromatopsia (no color) | #262626 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #202539
#202539
oklch(26.9% 0.038 272.9)
- #2D260F
#2D260F
oklch(27% 0.038 92.8)
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 #202539, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.008
- Dark #1B2431 ΔE 0.018
- Jet #212529 ΔE 0.031
- Space Cadet #2B2D42 ΔE 0.036
- Gunmetal #293241 ΔE 0.047
- Rich Black #0D1B2A ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.067
- Midnight Green #073B4C ΔE 0.074
Use #202539 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.