#23376E
Closest named color: Marine Blue (#01386A). oklch(35.2% 0.099 266.4), rgb(35, 55, 110).
Aa
White text reads best on this color (11.39:1).
About this color
#23376E is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.099 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.028 away. White text reads best on it, at 11.39:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.84:1 |
| White text | 11.39:1 |
Values
| HEX | #23376E |
| RGB | rgb(35, 55, 110) |
| HSL | hsl(224, 52%, 28%) |
| OKLCH | oklch(35.2% 0.099 266.4) |
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 #23376E | 11.39:1 | AAA | Lc -99.8 | Preferred for body text |
| Black text on #23376E | 1.84:1 | Fails | Lc 7.9 | Not readable |
| #23376E text on white | 11.39:1 | AAA | Lc 96.0 | Preferred for body text |
| #23376E 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
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CDD9F5
oklch(88.5% 0.041 267.1)
-
Step 300
300
#ABC0F1
oklch(80.9% 0.073 266.7)
-
Step 400
400
#7E9EEB
oklch(70.7% 0.119 266.2)
-
Step 500
500
#5F84E4
oklch(63.1% 0.15 266.3)
-
Step 600
600
#466BD2
oklch(55.5% 0.164 266.3)
-
Step 700
700
#3859B6
oklch(49.1% 0.152 266.2)
-
Step 800
800
#2F4993
oklch(42.7% 0.126 266.5)
-
Step 900
900 (this color)
#23376E
oklch(35.2% 0.099 266.4)
-
Step 950
950
#182545
oklch(27.1% 0.062 265.8)
#23376E 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) | #1B3E70 | 0.021 |
| Deuteranopia (no green cones) | #0B376D | 0.022 |
| Tritanopia (no blue cones) | #00444D | 0.083 |
| Achromatopsia (no color) | #3A3A3A | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23376E
#23376E
oklch(35.2% 0.099 266.4)
- #4C3800
#4C3800
oklch(35.3% 0.072 86.2)
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 #23376E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.028
- Twilight Blue #0A437A ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.041
- Marine #042E60 ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.063
- Dark Grey Blue #29465B ΔE 0.064
- Cobalt #1E488F ΔE 0.069
- Midnight Green #073B4C ΔE 0.070
Use #23376E 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.