#04131E
Closest named color: Rich Navy (#001219). oklch(17.9% 0.032 240.8), rgb(4, 19, 30).
Aa
White text reads best on this color (18.79:1).
About this color
#04131E is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.032 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.014 away. White text reads best on it, at 18.79:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.11:1 |
| White text | 18.79:1 |
Values
| HEX | #04131E |
| RGB | rgb(4, 19, 30) |
| HSL | hsl(205, 76%, 7%) |
| OKLCH | oklch(17.9% 0.032 240.8) |
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 #04131E | 18.79:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #04131E | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #04131E text on white | 18.79:1 | AAA | Lc 105.2 | Preferred for body text |
| #04131E 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CDDBE6
oklch(88.4% 0.021 241.4)
-
Step 300
300
#ACC4D7
oklch(80.8% 0.038 241.9)
-
Step 400
400
#7FA6C3
oklch(70.7% 0.06 240.9)
-
Step 500
500
#5D90B4
oklch(63.2% 0.077 240.3)
-
Step 600
600
#4279A0
oklch(55.5% 0.084 241.4)
-
Step 700
700
#346689
oklch(49.1% 0.078 241.3)
-
Step 800
800
#2C536F
oklch(42.6% 0.064 241.6)
-
Step 900
900
#28455A
oklch(37.7% 0.05 241.3)
-
Step 950
950 (this color)
#04131E
oklch(17.9% 0.032 240.8)
#04131E 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) | #0E131F | 0.017 |
| Deuteranopia (no green cones) | #0A101E | 0.014 |
| Tritanopia (no blue cones) | #001617 | 0.023 |
| Achromatopsia (no color) | #121212 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04131E
#04131E
oklch(17.9% 0.032 240.8)
- #1B0E03
#1B0E03
oklch(17.9% 0.032 64)
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 #04131E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.014
- Almost Black #070D0D ΔE 0.037
- Rich Black #0D1B2A ΔE 0.039
- Dark Navy #000435 ΔE 0.070
- Dark Navy Blue #00022E ΔE 0.072
- Midnight #03012D ΔE 0.073
- Very Dark Blue #000133 ΔE 0.077
- Dark #1B2431 ΔE 0.079
Use #04131E 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.