#030D31
Closest named color: Dark Navy (#000435). oklch(17.9% 0.074 264.9), rgb(3, 13, 49).
Aa
White text reads best on this color (18.99:1).
About this color
#030D31 is a very dark, moderately saturated blue. In OKLCH its lightness is 18%, its chroma 0.074 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Navy (#000435), ΔE 0.029 away. White text reads best on it, at 18.99:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Dark Navy (#000435) |
| Black text | 1.10:1 |
| White text | 18.99:1 |
Values
| HEX | #030D31 |
| RGB | rgb(3, 13, 49) |
| HSL | hsl(227, 88%, 10%) |
| OKLCH | oklch(17.9% 0.074 264.9) |
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 #030D31 | 18.99:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #030D31 | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #030D31 text on white | 18.99:1 | AAA | Lc 105.2 | Preferred for body text |
| #030D31 text on black | 1.10:1 | 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
#F2F6FE
oklch(97.2% 0.012 264.5)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CAD9FA
oklch(88.5% 0.048 266)
-
Step 300
300
#A5C0FA
oklch(80.9% 0.088 265.1)
-
Step 400
400
#759DF7
oklch(70.6% 0.14 264.9)
-
Step 500
500
#5382F4
oklch(63.1% 0.178 264.9)
-
Step 600
600
#3968E3
oklch(55.6% 0.194 264.9)
-
Step 700
700
#2C56C5
oklch(49.2% 0.18 264.8)
-
Step 800
800
#25479F
oklch(42.7% 0.149 264.8)
-
Step 900
900
#223D7E
oklch(37.8% 0.115 264.5)
-
Step 950
950 (this color)
#030D31
oklch(17.9% 0.074 264.9)
#030D31 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) | #001332 | 0.018 |
| Deuteranopia (no green cones) | #000E30 | 0.006 |
| Tritanopia (no blue cones) | #00161D | 0.056 |
| Achromatopsia (no color) | #101010 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #030D31
#030D31
oklch(17.9% 0.074 264.9)
- #191000
#191000
oklch(18% 0.037 85.1)
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 #030D31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Navy #000435 ΔE 0.029
- Dark Navy Blue #00022E ΔE 0.039
- Very Dark Blue #000133 ΔE 0.039
- Midnight #03012D ΔE 0.040
- Navy Blue #001146 ΔE 0.043
- Night Blue #040348 ΔE 0.048
- Rich Navy #001219 ΔE 0.056
- Rich Black #0D1B2A ΔE 0.056
Use #030D31 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.