#09283E
Closest named color: Oxford Blue (#1B263B). oklch(26.7% 0.055 243.7), rgb(9, 40, 62).
Aa
White text reads best on this color (15.16:1).
About this color
#09283E is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.055 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.020 away. White text reads best on it, at 15.16:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.38:1 |
| White text | 15.16:1 |
Values
| HEX | #09283E |
| RGB | rgb(9, 40, 62) |
| HSL | hsl(205, 75%, 14%) |
| OKLCH | oklch(26.7% 0.055 243.7) |
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 #09283E | 15.16:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #09283E | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #09283E text on white | 15.16:1 | AAA | Lc 101.9 | Preferred for body text |
| #09283E 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF6
oklch(93.7% 0.019 243)
-
Step 200
200
#C6DCF0
oklch(88.4% 0.036 245.7)
-
Step 300
300
#9DC6E8
oklch(80.9% 0.065 243.7)
-
Step 400
400
#65A8DC
oklch(70.8% 0.103 243.4)
-
Step 500
500
#3291D3
oklch(63.2% 0.132 243.5)
-
Step 600
600
#0079BC
oklch(55.5% 0.136 243.9)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005383
oklch(42.6% 0.105 243.8)
-
Step 900
900
#0A456B
oklch(37.6% 0.086 243.7)
-
Step 950
950 (this color)
#09283E
oklch(26.7% 0.055 243.7)
#09283E 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) | #1E293F | 0.025 |
| Deuteranopia (no green cones) | #16243E | 0.018 |
| Tritanopia (no blue cones) | #002D30 | 0.037 |
| Achromatopsia (no color) | #262626 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #09283E
#09283E
oklch(26.7% 0.055 243.7)
- #381F04
#381F04
oklch(26.7% 0.055 63.8)
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 #09283E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.020
- Dark #1B2431 ΔE 0.030
- Jet #212529 ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.050
- Rich Black #0D1B2A ΔE 0.053
- Gunmetal #293241 ΔE 0.056
- Marine #042E60 ΔE 0.062
- Prussian Blue #1D3557 ΔE 0.064
Use #09283E 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.