#04235E
Closest named color: Marine (#042E60). oklch(27.9% 0.111 261.4), rgb(4, 35, 94).
Aa
White text reads best on this color (14.92:1).
About this color
#04235E is a dark, moderately saturated blue. In OKLCH its lightness is 28%, its chroma 0.111 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.032 away. White text reads best on it, at 14.92:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.40:1 |
| White text | 14.92:1 |
Values
| HEX | #04235E |
| RGB | rgb(4, 35, 94) |
| HSL | hsl(219, 92%, 19%) |
| OKLCH | oklch(27.9% 0.111 261.4) |
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 #04235E | 14.92:1 | AAA | Lc -104.2 | Preferred for body text |
| Black text on #04235E | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #04235E text on white | 14.92:1 | AAA | Lc 101.3 | Preferred for body text |
| #04235E text on black | 1.40:1 | 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 950.
-
Step 50
50
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DFEBFF
oklch(93.7% 0.03 260.7)
-
Step 200
200
#C5DAFF
oklch(88.5% 0.056 261.8)
-
Step 300
300
#9EC1FF
oklch(80.8% 0.096 261.6)
-
Step 400
400
#699FFF
oklch(70.8% 0.152 261.1)
-
Step 500
500
#3F82FF
oklch(63.1% 0.198 261.5)
-
Step 600
600
#0162FF
oklch(55.6% 0.245 261.4)
-
Step 700
700
#0052D9
oklch(49.2% 0.217 261.4)
-
Step 800
800
#0042B4
oklch(42.7% 0.19 261.5)
-
Step 900
900
#003798
oklch(37.8% 0.167 261.3)
-
Step 950
950 (this color)
#04235E
oklch(27.9% 0.111 261.4)
#04235E 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) | #002B60 | 0.023 |
| Deuteranopia (no green cones) | #00235D | 0.004 |
| Tritanopia (no blue cones) | #00323C | 0.085 |
| Achromatopsia (no color) | #272727 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04235E
#04235E
oklch(27.9% 0.111 261.4)
- #372500
#372500
oklch(27.9% 0.058 81)
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 #04235E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.032
- Midnight Blue #191970 ΔE 0.042
- Darkblue #030764 ΔE 0.057
- Dark Royal Blue #02066F ΔE 0.060
- Marine Blue #01386A ΔE 0.064
- Dark Indigo #1F0954 ΔE 0.065
- Deep Blue #040273 ΔE 0.065
- Prussian Blue #1D3557 ΔE 0.066
Use #04235E 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.