#031030
Closest named color: Dark Navy (#000435). oklch(18.5% 0.067 262.5), rgb(3, 16, 48).
Aa
White text reads best on this color (18.73:1).
About this color
#031030 is a very dark, muted blue. In OKLCH its lightness is 19%, its chroma 0.067 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Navy (#000435), ΔE 0.038 away. White text reads best on it, at 18.73:1.
| Hue family | Blues |
| Lightness | very dark (19%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Dark Navy (#000435) |
| Black text | 1.12:1 |
| White text | 18.73:1 |
Values
| HEX | #031030 |
| RGB | rgb(3, 16, 48) |
| HSL | hsl(223, 88%, 10%) |
| OKLCH | oklch(18.5% 0.067 262.5) |
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 #031030 | 18.73:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #031030 | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #031030 text on white | 18.73:1 | AAA | Lc 105.0 | Preferred for body text |
| #031030 text on black | 1.12:1 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CADAF7
oklch(88.5% 0.044 262.4)
-
Step 300
300
#A5C1F5
oklch(80.9% 0.08 262.6)
-
Step 400
400
#759FF0
oklch(70.6% 0.128 262.7)
-
Step 500
500
#5185EB
oklch(63.1% 0.163 262.4)
-
Step 600
600
#366CD9
oklch(55.6% 0.177 262.4)
-
Step 700
700
#2959BC
oklch(49% 0.165 262.5)
-
Step 800
800
#234A98
oklch(42.7% 0.136 262.3)
-
Step 900
900
#213E79
oklch(37.6% 0.107 262.7)
-
Step 950
950 (this color)
#031030
oklch(18.5% 0.067 262.5)
#031030 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) | #001431 | 0.013 |
| Deuteranopia (no green cones) | #00102F | 0.006 |
| Tritanopia (no blue cones) | #00181D | 0.053 |
| Achromatopsia (no color) | #121212 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031030
#031030
oklch(18.5% 0.067 262.5)
- #1B1100
#1B1100
oklch(18.6% 0.038 83.3)
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 #031030, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Navy #000435 ΔE 0.038
- Navy Blue #001146 ΔE 0.043
- Rich Black #0D1B2A ΔE 0.046
- Dark Navy Blue #00022E ΔE 0.048
- Very Dark Blue #000133 ΔE 0.048
- Midnight #03012D ΔE 0.049
- Rich Navy #001219 ΔE 0.050
- Night Blue #040348 ΔE 0.053
Use #031030 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.