#06283B
Closest named color: Oxford Blue (#1B263B). oklch(26.4% 0.052 238.1), rgb(6, 40, 59).
Aa
White text reads best on this color (15.27:1).
About this color
#06283B is a dark, muted blue. In OKLCH its lightness is 26%, its chroma 0.052 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.023 away. White text reads best on it, at 15.27:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.37:1 |
| White text | 15.27:1 |
Values
| HEX | #06283B |
| RGB | rgb(6, 40, 59) |
| HSL | hsl(202, 82%, 13%) |
| OKLCH | oklch(26.4% 0.052 238.1) |
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 #06283B | 15.27:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #06283B | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #06283B text on white | 15.27:1 | AAA | Lc 102.0 | Preferred for body text |
| #06283B text on black | 1.37:1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#DFECF5
oklch(93.6% 0.018 237.8)
-
Step 200
200
#C5DDED
oklch(88.5% 0.034 237)
-
Step 300
300
#9CC7E4
oklch(80.9% 0.061 238)
-
Step 400
400
#62A9D7
oklch(70.6% 0.098 238.7)
-
Step 500
500
#2A93CC
oklch(63.1% 0.125 238)
-
Step 600
600
#007CB3
oklch(55.7% 0.124 238.2)
-
Step 700
700
#006897
oklch(49.1% 0.109 238.1)
-
Step 800
800
#00557C
oklch(42.7% 0.094 237.9)
-
Step 900
900
#034768
oklch(37.8% 0.082 238)
-
Step 950
950 (this color)
#06283B
oklch(26.4% 0.052 238.1)
#06283B 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) | #1F283C | 0.029 |
| Deuteranopia (no green cones) | #18233B | 0.024 |
| Tritanopia (no blue cones) | #002D2F | 0.034 |
| Achromatopsia (no color) | #252525 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #06283B
#06283B
oklch(26.4% 0.052 238.1)
- #371E08
#371E08
oklch(26.4% 0.051 58.9)
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 #06283B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.023
- Dark #1B2431 ΔE 0.028
- Jet #212529 ΔE 0.043
- Rich Black #0D1B2A ΔE 0.050
- Space Cadet #2B2D42 ΔE 0.054
- Gunmetal #293241 ΔE 0.058
- Midnight Green #073B4C ΔE 0.067
- Marine #042E60 ΔE 0.068
Use #06283B 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.