#233869
Closest named color: Marine Blue (#01386A). oklch(35.1% 0.089 264.7), rgb(35, 56, 105).
Aa
White text reads best on this color (11.40:1).
About this color
#233869 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.089 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.026 away. White text reads best on it, at 11.40:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.84:1 |
| White text | 11.40:1 |
Values
| HEX | #233869 |
| RGB | rgb(35, 56, 105) |
| HSL | hsl(222, 50%, 27%) |
| OKLCH | oklch(35.1% 0.089 264.7) |
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 #233869 | 11.40:1 | AAA | Lc -99.8 | Preferred for body text |
| Black text on #233869 | 1.84:1 | Fails | Lc 7.8 | Not readable |
| #233869 text on white | 11.40:1 | AAA | Lc 96.1 | Preferred for body text |
| #233869 text on black | 1.84:1 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CDD9F3
oklch(88.4% 0.038 265.8)
-
Step 300
300
#ABC1ED
oklch(80.9% 0.067 264.1)
-
Step 400
400
#7F9FE4
oklch(70.6% 0.108 264.7)
-
Step 500
500
#6086DC
oklch(63.1% 0.137 264.8)
-
Step 600
600
#476ECA
oklch(55.7% 0.149 264.7)
-
Step 700
700
#395BAE
oklch(49% 0.138 265)
-
Step 800
800
#2F4B8D
oklch(42.7% 0.114 264.7)
-
Step 900
900 (this color)
#233869
oklch(35.1% 0.089 264.7)
-
Step 950
950
#182542
oklch(26.9% 0.057 264.6)
#233869 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) | #213D6B | 0.015 |
| Deuteranopia (no green cones) | #163768 | 0.015 |
| Tritanopia (no blue cones) | #00434B | 0.075 |
| Achromatopsia (no color) | #3A3A3A | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #233869
#233869
oklch(35.1% 0.089 264.7)
- #4C3700
#4C3700
oklch(35.1% 0.072 84.7)
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 #233869, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.026
- Prussian Blue #1D3557 ΔE 0.033
- Twilight Blue #0A437A ΔE 0.041
- Marine #042E60 ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.056
- Midnight Green #073B4C ΔE 0.061
- Charcoal #264653 ΔE 0.066
Use #233869 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.