#011F2E
Closest named color: Rich Black (#0D1B2A). oklch(22.6% 0.046 234.2), rgb(1, 31, 46).
Aa
White text reads best on this color (16.98:1).
About this color
#011F2E is a very dark, muted blue. In OKLCH its lightness is 23%, its chroma 0.046 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.018 away. White text reads best on it, at 16.98:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.23:1 |
| White text | 16.98:1 |
Values
| HEX | #011F2E |
| RGB | rgb(1, 31, 46) |
| HSL | hsl(200, 96%, 9%) |
| OKLCH | oklch(22.6% 0.046 234.2) |
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 #011F2E | 16.98:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #011F2E | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #011F2E text on white | 16.98:1 | AAA | Lc 103.7 | Preferred for body text |
| #011F2E text on black | 1.23:1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C7DDEA
oklch(88.5% 0.03 233.6)
-
Step 300
300
#9FC7DF
oklch(80.9% 0.054 234.7)
-
Step 400
400
#67AACF
oklch(70.8% 0.087 234)
-
Step 500
500
#3594C2
oklch(63.1% 0.111 233.7)
-
Step 600
600
#007DAD
oklch(55.6% 0.117 234.3)
-
Step 700
700
#006992
oklch(49.1% 0.103 234.3)
-
Step 800
800
#005678
oklch(42.7% 0.089 233.9)
-
Step 900
900
#0D4762
oklch(37.6% 0.073 234.5)
-
Step 950
950 (this color)
#011F2E
oklch(22.6% 0.046 234.2)
#011F2E 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) | #181F2F | 0.029 |
| Deuteranopia (no green cones) | #111A2E | 0.024 |
| Tritanopia (no blue cones) | #002324 | 0.028 |
| Achromatopsia (no color) | #1C1C1C | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #011F2E
#011F2E
oklch(22.6% 0.046 234.2)
- #2C1505
#2C1505
oklch(22.5% 0.046 54)
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 #011F2E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.018
- Dark #1B2431 ΔE 0.040
- Oxford Blue #1B263B ΔE 0.049
- Jet #212529 ΔE 0.052
- Rich Navy #001219 ΔE 0.059
- Navy Blue #001146 ΔE 0.067
- Almost Black #070D0D ΔE 0.083
- Space Cadet #2B2D42 ΔE 0.086
Use #011F2E 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.