#031A27
Closest named color: Rich Black (#0D1B2A). oklch(20.7% 0.039 236.1), rgb(3, 26, 39).
Aa
White text reads best on this color (17.78:1).
About this color
#031A27 is a very dark, muted blue. In OKLCH its lightness is 21%, its chroma 0.039 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.015 away. White text reads best on it, at 17.78:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.18:1 |
| White text | 17.78:1 |
Values
| HEX | #031A27 |
| RGB | rgb(3, 26, 39) |
| HSL | hsl(202, 86%, 8%) |
| OKLCH | oklch(20.7% 0.039 236.1) |
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 #031A27 | 17.78:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #031A27 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #031A27 text on white | 17.78:1 | AAA | Lc 104.4 | Preferred for body text |
| #031A27 text on black | 1.18:1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCE8
oklch(88.5% 0.025 236.9)
-
Step 300
300
#A5C6DB
oklch(80.9% 0.046 236.1)
-
Step 400
400
#72A8C9
oklch(70.6% 0.075 236.1)
-
Step 500
500
#4A92BB
oklch(63.1% 0.095 236)
-
Step 600
600
#277CA8
oklch(55.7% 0.104 236.1)
-
Step 700
700
#186890
oklch(49.1% 0.097 236.3)
-
Step 800
800
#185575
oklch(42.7% 0.08 236.4)
-
Step 900
900
#1C465E
oklch(37.6% 0.062 236.8)
-
Step 950
950 (this color)
#031A27
oklch(20.7% 0.039 236.1)
#031A27 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) | #141A28 | 0.024 |
| Deuteranopia (no green cones) | #0F1627 | 0.020 |
| Tritanopia (no blue cones) | #001D1E | 0.025 |
| Achromatopsia (no color) | #181818 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #031A27
#031A27
oklch(20.7% 0.039 236.1)
- #251205
#251205
oklch(20.6% 0.039 54.8)
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 #031A27, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.015
- Rich Navy #001219 ΔE 0.039
- Dark #1B2431 ΔE 0.054
- Jet #212529 ΔE 0.063
- Almost Black #070D0D ΔE 0.063
- Oxford Blue #1B263B ΔE 0.065
- Navy Blue #001146 ΔE 0.069
- Dark Navy #000435 ΔE 0.079
Use #031A27 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.