#04102E
Closest named color: Dark Navy (#000435). oklch(18.4% 0.063 263.2), rgb(4, 16, 46).
Aa
White text reads best on this color (18.77:1).
About this color
#04102E is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.063 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Navy (#000435), ΔE 0.040 away. White text reads best on it, at 18.77:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dark Navy (#000435) |
| Black text | 1.11:1 |
| White text | 18.77:1 |
Values
| HEX | #04102E |
| RGB | rgb(4, 16, 46) |
| HSL | hsl(223, 84%, 10%) |
| OKLCH | oklch(18.4% 0.063 263.2) |
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 #04102E | 18.77:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #04102E | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #04102E text on white | 18.77:1 | AAA | Lc 105.1 | Preferred for body text |
| #04102E text on black | 1.11:1 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CBDAF6
oklch(88.6% 0.042 263)
-
Step 300
300
#A7C1F2
oklch(80.9% 0.075 262.9)
-
Step 400
400
#799FEC
oklch(70.7% 0.121 263.6)
-
Step 500
500
#5785E5
oklch(63% 0.153 263.4)
-
Step 600
600
#3D6DD3
oklch(55.6% 0.166 263.1)
-
Step 700
700
#2F5AB7
oklch(49% 0.155 263.2)
-
Step 800
800
#284A94
oklch(42.6% 0.128 263.4)
-
Step 900
900
#243F76
oklch(37.7% 0.1 262.9)
-
Step 950
950 (this color)
#04102E
oklch(18.4% 0.063 263.2)
#04102E 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) | #00142F | 0.013 |
| Deuteranopia (no green cones) | #00102D | 0.008 |
| Tritanopia (no blue cones) | #00171C | 0.050 |
| Achromatopsia (no color) | #121212 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04102E
#04102E
oklch(18.4% 0.063 263.2)
- #1A1100
#1A1100
oklch(18.4% 0.038 85.8)
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 #04102E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Navy #000435 ΔE 0.040
- Rich Black #0D1B2A ΔE 0.045
- Rich Navy #001219 ΔE 0.047
- Navy Blue #001146 ΔE 0.047
- Dark Navy Blue #00022E ΔE 0.049
- Midnight #03012D ΔE 0.049
- Very Dark Blue #000133 ΔE 0.050
- Night Blue #040348 ΔE 0.057
Use #04102E 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.