#122437
Closest named color: Dark (#1B2431). oklch(25.5% 0.043 251.1), rgb(18, 36, 55).
Aa
White text reads best on this color (15.75:1).
About this color
#122437 is a dark, muted blue. In OKLCH its lightness is 25%, its chroma 0.043 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.016 away. White text reads best on it, at 15.75:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.33:1 |
| White text | 15.75:1 |
Values
| HEX | #122437 |
| RGB | rgb(18, 36, 55) |
| HSL | hsl(211, 51%, 14%) |
| OKLCH | oklch(25.5% 0.043 251.1) |
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 #122437 | 15.75:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #122437 | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #122437 text on white | 15.75:1 | AAA | Lc 102.6 | Preferred for body text |
| #122437 text on black | 1.33:1 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CCDBEC
oklch(88.5% 0.029 251.5)
-
Step 300
300
#A9C4E1
oklch(81% 0.051 250.3)
-
Step 400
400
#7AA4D3
oklch(70.6% 0.083 251.8)
-
Step 500
500
#578DC7
oklch(63.1% 0.105 251.4)
-
Step 600
600
#3B76B4
oklch(55.6% 0.115 251.6)
-
Step 700
700
#2D639B
oklch(49.1% 0.107 251.6)
-
Step 800
800
#26517D
oklch(42.6% 0.088 251.1)
-
Step 900
900
#244465
oklch(37.8% 0.068 250.7)
-
Step 950
950 (this color)
#122437
oklch(25.5% 0.043 251.1)
#122437 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) | #1C2538 | 0.015 |
| Deuteranopia (no green cones) | #172137 | 0.012 |
| Tritanopia (no blue cones) | #00282B | 0.036 |
| Achromatopsia (no color) | #232323 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #122437
#122437
oklch(25.5% 0.043 251.1)
- #301F09
#301F09
oklch(25.5% 0.043 70.6)
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 #122437, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.016
- Oxford Blue #1B263B ΔE 0.017
- Jet #212529 ΔE 0.035
- Rich Black #0D1B2A ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.054
- Gunmetal #293241 ΔE 0.062
- Navy Blue #001146 ΔE 0.075
- Marine #042E60 ΔE 0.077
Use #122437 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.