#09234C
Closest named color: Oxford Blue (#1B263B). oklch(26.4% 0.082 259.4), rgb(9, 35, 76).
Aa
White text reads best on this color (15.48:1).
About this color
#09234C is a dark, moderately saturated blue. In OKLCH its lightness is 26%, its chroma 0.082 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.041 away. White text reads best on it, at 15.48:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.35:1 |
| White text | 15.48:1 |
Values
| HEX | #09234C |
| RGB | rgb(9, 35, 76) |
| HSL | hsl(217, 79%, 17%) |
| OKLCH | oklch(26.4% 0.082 259.4) |
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 #09234C | 15.48:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #09234C | 1.35:1 | Fails | Lc 0.0 | Not readable |
| #09234C text on white | 15.48:1 | AAA | Lc 102.1 | Preferred for body text |
| #09234C text on black | 1.35:1 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C4DBFE
oklch(88.6% 0.054 258.7)
-
Step 300
300
#9CC2FF
oklch(80.9% 0.096 259.7)
-
Step 400
400
#64A0FF
oklch(70.8% 0.153 259.2)
-
Step 500
500
#3584FF
oklch(63.2% 0.199 259.3)
-
Step 600
600
#0569EF
oklch(55.6% 0.217 259.4)
-
Step 700
700
#0057CC
oklch(49% 0.195 259.5)
-
Step 800
800
#0248A8
oklch(42.8% 0.167 259.3)
-
Step 900
900
#0F3D85
oklch(37.6% 0.131 259.7)
-
Step 950
950 (this color)
#09234C
oklch(26.4% 0.082 259.4)
#09234C 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) | #0B274E | 0.013 |
| Deuteranopia (no green cones) | #00214B | 0.012 |
| Tritanopia (no blue cones) | #002D33 | 0.065 |
| Achromatopsia (no color) | #242424 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #09234C
#09234C
oklch(26.4% 0.082 259.4)
- #332100
#332100
oklch(26.4% 0.055 78.7)
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 #09234C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.041
- Marine #042E60 ΔE 0.047
- Dark #1B2431 ΔE 0.055
- Navy Blue #001146 ΔE 0.057
- Space Cadet #2B2D42 ΔE 0.064
- Dark Indigo #1F0954 ΔE 0.066
- Prussian Blue #1D3557 ΔE 0.066
- Rich Black #0D1B2A ΔE 0.066
Use #09234C 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.