#232B6F
Closest named color: Marine (#042E60). oklch(32.7% 0.117 273), rgb(35, 43, 111).
Aa
White text reads best on this color (12.75:1).
About this color
#232B6F is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.117 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.041 away. White text reads best on it, at 12.75:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.64:1 |
| White text | 12.75:1 |
Values
| HEX | #232B6F |
| RGB | rgb(35, 43, 111) |
| HSL | hsl(234, 52%, 29%) |
| OKLCH | oklch(32.7% 0.117 273) |
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 #232B6F | 12.75:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #232B6F | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #232B6F text on white | 12.75:1 | AAA | Lc 98.5 | Preferred for body text |
| #232B6F text on black | 1.64:1 | 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 900.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CED8FA
oklch(88.5% 0.048 272.4)
-
Step 300
300
#AEBDFA
oklch(80.9% 0.088 273.6)
-
Step 400
400
#8499F7
oklch(70.7% 0.14 272.8)
-
Step 500
500
#687CF4
oklch(63.1% 0.179 273.1)
-
Step 600
600
#5262E3
oklch(55.7% 0.195 273)
-
Step 700
700
#4350C5
oklch(49.1% 0.181 273)
-
Step 800
800
#37429F
oklch(42.7% 0.15 273.2)
-
Step 900
900 (this color)
#232B6F
oklch(32.7% 0.117 273)
-
Step 950
950
#1B224A
oklch(27% 0.074 273)
#232B6F 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) | #003671 | 0.037 |
| Deuteranopia (no green cones) | #002F6E | 0.031 |
| Tritanopia (no blue cones) | #003C48 | 0.098 |
| Achromatopsia (no color) | #323232 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #232B6F
#232B6F
oklch(32.7% 0.117 273)
- #403300
#403300
oklch(32.6% 0.067 93.2)
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 #232B6F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.041
- Marine Blue #01386A ΔE 0.044
- Midnight Blue #191970 ΔE 0.047
- Prussian Blue #1D3557 ΔE 0.055
- Twilight Blue #0A437A ΔE 0.068
- Royal #0C1793 ΔE 0.077
- Space Cadet #2B2D42 ΔE 0.082
- Dark Blue Grey #1F3B4D ΔE 0.084
Use #232B6F 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.