#04031F
Closest named color: Midnight (#03012D). oklch(13% 0.061 276.2), rgb(4, 3, 31).
Aa
White text reads best on this color (20.23:1).
About this color
#04031F is a very dark, muted blue. In OKLCH its lightness is 13%, its chroma 0.061 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight (#03012D), ΔE 0.030 away. White text reads best on it, at 20.23:1.
| Hue family | Blues |
| Lightness | very dark (13%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Midnight (#03012D) |
| Black text | 1.03:1 |
| White text | 20.23:1 |
Values
| HEX | #04031F |
| RGB | rgb(4, 3, 31) |
| HSL | hsl(242, 82%, 7%) |
| OKLCH | oklch(13% 0.061 276.2) |
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 #04031F | 20.23:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #04031F | 1.03:1 | Fails | Lc 0.0 | Not readable |
| #04031F text on white | 20.23:1 | AAA | Lc 105.8 | Preferred for body text |
| #04031F text on black | 1.03:1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E6E9F8
oklch(93.6% 0.02 276.9)
-
Step 200
200
#D1D7F4
oklch(88.4% 0.04 276.3)
-
Step 300
300
#B3BDF0
oklch(80.8% 0.073 276)
-
Step 400
400
#8D9AE9
oklch(70.8% 0.116 275.9)
-
Step 500
500
#737EE2
oklch(63.1% 0.149 276.5)
-
Step 600
600
#5D65D0
oklch(55.6% 0.163 276.5)
-
Step 700
700
#4D54B4
oklch(49.2% 0.15 276.3)
-
Step 800
800
#3F4591
oklch(42.7% 0.123 276.4)
-
Step 900
900
#353B74
oklch(37.8% 0.096 276.2)
-
Step 950
950 (this color)
#04031F
oklch(13% 0.061 276.2)
#04031F 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) | #000720 | 0.020 |
| Deuteranopia (no green cones) | #00051E | 0.016 |
| Tritanopia (no blue cones) | #00090F | 0.049 |
| Achromatopsia (no color) | #060606 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04031F
#04031F
oklch(13% 0.061 276.2)
- #0A0700
#0A0700
oklch(12.9% 0.027 96.5)
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 #04031F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight #03012D ΔE 0.030
- Dark Navy Blue #00022E ΔE 0.035
- Very Dark Blue #000133 ΔE 0.045
- Dark Navy #000435 ΔE 0.048
- Rich Navy #001219 ΔE 0.063
- Almost Black #070D0D ΔE 0.065
- Night Blue #040348 ΔE 0.085
- Navy Blue #001146 ΔE 0.092
Use #04031F 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.