#04245F
Closest named color: Marine (#042E60). oklch(28.2% 0.112 261.1), rgb(4, 36, 95).
Aa
White text reads best on this color (14.76:1).
About this color
#04245F is a dark, moderately saturated blue. In OKLCH its lightness is 28%, its chroma 0.112 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.029 away. White text reads best on it, at 14.76:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.42:1 |
| White text | 14.76:1 |
Values
| HEX | #04245F |
| RGB | rgb(4, 36, 95) |
| HSL | hsl(219, 92%, 19%) |
| OKLCH | oklch(28.2% 0.112 261.1) |
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 #04245F | 14.76:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #04245F | 1.42:1 | Fails | Lc 0.0 | Not readable |
| #04245F text on white | 14.76:1 | AAA | Lc 101.1 | Preferred for body text |
| #04245F text on black | 1.42:1 | 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
#689FFF
oklch(70.7% 0.153 260.8)
-
Step 500
500
#3E82FF
oklch(63% 0.199 261.3)
-
Step 600
600
#0063FD
oklch(55.6% 0.242 261.1)
-
Step 700
700
#0053D7
oklch(49.2% 0.214 261.1)
-
Step 800
800
#0043B2
oklch(42.7% 0.186 261.1)
-
Step 900
900
#003796
oklch(37.6% 0.164 261.2)
-
Step 950
950 (this color)
#04245F
oklch(28.2% 0.112 261.1)
#04245F 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) | #002C61 | 0.023 |
| Deuteranopia (no green cones) | #00245E | 0.004 |
| Tritanopia (no blue cones) | #00333D | 0.085 |
| Achromatopsia (no color) | #282828 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04245F
#04245F
oklch(28.2% 0.112 261.1)
- #382600
#382600
oklch(28.3% 0.058 81.5)
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 #04245F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.029
- Midnight Blue #191970 ΔE 0.042
- Darkblue #030764 ΔE 0.060
- Marine Blue #01386A ΔE 0.061
- Dark Royal Blue #02066F ΔE 0.061
- Prussian Blue #1D3557 ΔE 0.064
- Deep Blue #040273 ΔE 0.066
- Dark Indigo #1F0954 ΔE 0.067
Use #04245F 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.