#00031C
Closest named color: Midnight (#03012D). oklch(11.9% 0.06 263.1), rgb(0, 3, 28).
Aa
White text reads best on this color (20.39:1).
About this color
#00031C is a very dark, muted blue. In OKLCH its lightness is 12%, its chroma 0.060 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight (#03012D), ΔE 0.038 away. White text reads best on it, at 20.39:1.
| Hue family | Blues |
| Lightness | very dark (12%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Midnight (#03012D) |
| Black text | 1.02:1 |
| White text | 20.39:1 |
Values
| HEX | #00031C |
| RGB | rgb(0, 3, 28) |
| HSL | hsl(234, 100%, 5%) |
| OKLCH | oklch(11.9% 0.06 263.1) |
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 #00031C | 20.39:1 | AAA | Lc -107.8 | Preferred for body text |
| Black text on #00031C | 1.02:1 | Fails | Lc 0.0 | Not readable |
| #00031C text on white | 20.39:1 | AAA | Lc 105.9 | Preferred for body text |
| #00031C text on black | 1.02:1 | 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
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200
#CCDAF4
oklch(88.6% 0.039 262.9)
-
Step 300
300
#A9C1F0
oklch(80.9% 0.072 263.7)
-
Step 400
400
#7BA0E8
oklch(70.8% 0.114 263)
-
Step 500
500
#5986E1
oklch(63.1% 0.146 263)
-
Step 600
600
#406ECF
oklch(55.7% 0.158 263.1)
-
Step 700
700
#325BB3
oklch(49.1% 0.147 263.2)
-
Step 800
800
#2A4B91
oklch(42.7% 0.122 263.2)
-
Step 900
900
#263F74
oklch(37.7% 0.096 263.5)
-
Step 950
950 (this color)
#00031C
oklch(11.9% 0.06 263.1)
#00031C 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) | #00061D | 0.015 |
| Deuteranopia (no green cones) | #00041C | 0.005 |
| Tritanopia (no blue cones) | #00080D | 0.045 |
| Achromatopsia (no color) | #050505 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00031C
#00031C
oklch(11.9% 0.06 263.1)
- #090500
#090500
oklch(11.9% 0.024 86.8)
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 #00031C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight #03012D ΔE 0.038
- Dark Navy Blue #00022E ΔE 0.038
- Very Dark Blue #000133 ΔE 0.048
- Dark Navy #000435 ΔE 0.054
- Rich Navy #001219 ΔE 0.065
- Almost Black #070D0D ΔE 0.066
- Night Blue #040348 ΔE 0.094
- Navy Blue #001146 ΔE 0.101
Use #00031C 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.