#122131
Closest named color: Dark (#1B2431). oklch(24.3% 0.037 251.1), rgb(18, 33, 49).
Aa
White text reads best on this color (16.30:1).
About this color
#122131 is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.037 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.018 away. White text reads best on it, at 16.30:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.28:1 |
| White text | 16.30:1 |
Values
| HEX | #122131 |
| RGB | rgb(18, 33, 49) |
| HSL | hsl(211, 46%, 13%) |
| OKLCH | oklch(24.3% 0.037 251.1) |
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 #122131 | 16.30:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #122131 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #122131 text on white | 16.30:1 | AAA | Lc 103.2 | Preferred for body text |
| #122131 text on black | 1.28:1 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDBE9
oklch(88.6% 0.024 250.1)
-
Step 300
300
#ACC3DD
oklch(80.8% 0.045 251.6)
-
Step 400
400
#80A4CC
oklch(70.7% 0.071 251.5)
-
Step 500
500
#5F8DBE
oklch(63% 0.09 250.9)
-
Step 600
600
#4577AB
oklch(55.7% 0.098 250.8)
-
Step 700
700
#366392
oklch(49% 0.091 251.1)
-
Step 800
800
#2E5177
oklch(42.7% 0.076 251.8)
-
Step 900
900
#294460
oklch(37.8% 0.058 250.4)
-
Step 950
950 (this color)
#122131
oklch(24.3% 0.037 251.1)
#122131 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) | #1A2232 | 0.013 |
| Deuteranopia (no green cones) | #171F31 | 0.009 |
| Tritanopia (no blue cones) | #032527 | 0.032 |
| Achromatopsia (no color) | #202020 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #122131
#122131
oklch(24.3% 0.037 251.1)
- #2B1D0B
#2B1D0B
oklch(24.4% 0.037 71.5)
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 #122131, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.018
- Rich Black #0D1B2A ΔE 0.025
- Oxford Blue #1B263B ΔE 0.028
- Jet #212529 ΔE 0.034
- Space Cadet #2B2D42 ΔE 0.065
- Gunmetal #293241 ΔE 0.073
- Navy Blue #001146 ΔE 0.074
- Rich Navy #001219 ΔE 0.076
Use #122131 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.