#233275
Closest named color: Marine Blue (#01386A). oklch(34.7% 0.116 269.8), rgb(35, 50, 117).
Aa
White text reads best on this color (11.76:1).
About this color
#233275 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.116 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.037 away. White text reads best on it, at 11.76:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.78:1 |
| White text | 11.76:1 |
Values
| HEX | #233275 |
| RGB | rgb(35, 50, 117) |
| HSL | hsl(229, 54%, 30%) |
| OKLCH | oklch(34.7% 0.116 269.8) |
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 #233275 | 11.76:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #233275 | 1.78:1 | Fails | Lc 0.0 | Not readable |
| #233275 text on white | 11.76:1 | AAA | Lc 96.7 | Preferred for body text |
| #233275 text on black | 1.78:1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CCD8FA
oklch(88.4% 0.049 270)
-
Step 300
300
#AABEFA
oklch(80.8% 0.088 270.1)
-
Step 400
400
#7F9BF7
oklch(70.8% 0.139 269.8)
-
Step 500
500
#607EF4
oklch(63% 0.179 269.9)
-
Step 600
600
#4964E3
oklch(55.6% 0.195 269.8)
-
Step 700
700
#3B52C5
oklch(49.1% 0.181 269.8)
-
Step 800
800
#31449F
oklch(42.7% 0.149 270)
-
Step 900
900 (this color)
#233275
oklch(34.7% 0.116 269.8)
-
Step 950
950
#19234A
oklch(27.1% 0.073 270.1)
#233275 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) | #003C77 | 0.034 |
| Deuteranopia (no green cones) | #003474 | 0.028 |
| Tritanopia (no blue cones) | #00424E | 0.095 |
| Achromatopsia (no color) | #383838 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #233275
#233275
oklch(34.7% 0.116 269.8)
- #483700
#483700
oklch(34.6% 0.071 89.4)
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 #233275, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.037
- Twilight Blue #0A437A ΔE 0.048
- Marine #042E60 ΔE 0.050
- Prussian Blue #1D3557 ΔE 0.055
- Midnight Blue #191970 ΔE 0.065
- Cobalt #1E488F ΔE 0.071
- Dark Slate Blue #483D8B ΔE 0.076
- Royal #0C1793 ΔE 0.080
Use #233275 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.