#232E70
Closest named color: Marine Blue (#01386A). oklch(33.4% 0.114 271.6), rgb(35, 46, 112).
Aa
White text reads best on this color (12.38:1).
About this color
#232E70 is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.114 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.039 away. White text reads best on it, at 12.38:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.69:1 |
| White text | 12.38:1 |
Values
| HEX | #232E70 |
| RGB | rgb(35, 46, 112) |
| HSL | hsl(231, 52%, 29%) |
| OKLCH | oklch(33.4% 0.114 271.6) |
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 #232E70 | 12.38:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #232E70 | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #232E70 text on white | 12.38:1 | AAA | Lc 97.8 | Preferred for body text |
| #232E70 text on black | 1.69:1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
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
#ADBEF9
oklch(81% 0.086 271.9)
-
Step 400
400
#829AF6
oklch(70.7% 0.137 271.4)
-
Step 500
500
#657EF2
oklch(63.2% 0.175 271.4)
-
Step 600
600
#4F64E1
oklch(55.7% 0.19 271.6)
-
Step 700
700
#4052C3
oklch(49.2% 0.177 271.5)
-
Step 800
800
#35449E
oklch(42.8% 0.146 271.6)
-
Step 900
900 (this color)
#232E70
oklch(33.4% 0.114 271.6)
-
Step 950
950
#1A2349
oklch(27.1% 0.071 270.9)
#232E70 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) | #003872 | 0.035 |
| Deuteranopia (no green cones) | #00316F | 0.030 |
| Tritanopia (no blue cones) | #003E4A | 0.095 |
| Achromatopsia (no color) | #343434 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #232E70
#232E70
oklch(33.4% 0.114 271.6)
- #433500
#433500
oklch(33.5% 0.068 92.5)
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 #232E70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.039
- Marine #042E60 ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.052
- Midnight Blue #191970 ΔE 0.054
- Twilight Blue #0A437A ΔE 0.060
- Dark Blue Grey #1F3B4D ΔE 0.080
- Royal #0C1793 ΔE 0.080
- Space Cadet #2B2D42 ΔE 0.082
Use #232E70 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.