#23244D
Closest named color: Oxford Blue (#1B263B). oklch(28.3% 0.074 279.5), rgb(35, 36, 77).
Aa
White text reads best on this color (14.67:1).
About this color
#23244D is a dark, moderately saturated blue. In OKLCH its lightness is 28%, its chroma 0.074 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.038 away. White text reads best on it, at 14.67:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.43:1 |
| White text | 14.67:1 |
Values
| HEX | #23244D |
| RGB | rgb(35, 36, 77) |
| HSL | hsl(239, 37%, 22%) |
| OKLCH | oklch(28.3% 0.074 279.5) |
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 #23244D | 14.67:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #23244D | 1.43:1 | Fails | Lc 0.0 | Not readable |
| #23244D text on white | 14.67:1 | AAA | Lc 101.4 | Preferred for body text |
| #23244D text on black | 1.43:1 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E8FB
oklch(93.5% 0.026 281.1)
-
Step 200
200
#D2D6FA
oklch(88.4% 0.05 280.3)
-
Step 300
300
#B4BBF9
oklch(80.9% 0.088 279.2)
-
Step 400
400
#8F95F6
oklch(70.6% 0.141 279.4)
-
Step 500
500
#7678F2
oklch(63.1% 0.179 279.3)
-
Step 600
600
#615DE0
oklch(55.6% 0.194 279.4)
-
Step 700
700
#514BC3
oklch(49% 0.181 279.6)
-
Step 800
800
#423F9E
oklch(42.8% 0.15 279.4)
-
Step 900
900
#37377D
oklch(37.8% 0.116 279.3)
-
Step 950
950 (this color)
#23244D
oklch(28.3% 0.074 279.5)
#23244D 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) | #122A4E | 0.027 |
| Deuteranopia (no green cones) | #0E274C | 0.028 |
| Tritanopia (no blue cones) | #132D34 | 0.065 |
| Achromatopsia (no color) | #282828 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23244D
#23244D
oklch(28.3% 0.074 279.5)
- #312A00
#312A00
oklch(28.4% 0.059 99.5)
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 #23244D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.042
- Marine #042E60 ΔE 0.049
- Prussian Blue #1D3557 ΔE 0.052
- Dark #1B2431 ΔE 0.055
- Gunmetal #293241 ΔE 0.057
- Dark Indigo #1F0954 ΔE 0.066
- Jet #212529 ΔE 0.069
Use #23244D 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.