#122537
Closest named color: Oxford Blue (#1B263B). oklch(25.8% 0.042 248.6), rgb(18, 37, 55).
Aa
White text reads best on this color (15.60:1).
About this color
#122537 is a dark, muted blue. In OKLCH its lightness is 26%, its chroma 0.042 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.015 away. White text reads best on it, at 15.60:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.34:1 |
| White text | 15.60:1 |
Values
| HEX | #122537 |
| RGB | rgb(18, 37, 55) |
| HSL | hsl(209, 51%, 14%) |
| OKLCH | oklch(25.8% 0.042 248.6) |
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 #122537 | 15.60:1 | AAA | Lc -105.1 | Preferred for body text |
| Black text on #122537 | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #122537 text on white | 15.60:1 | AAA | Lc 102.5 | Preferred for body text |
| #122537 text on black | 1.34:1 | 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
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CBDBEB
oklch(88.4% 0.028 248.1)
-
Step 300
300
#A8C4E0
oklch(80.9% 0.05 248.4)
-
Step 400
400
#79A5D1
oklch(70.7% 0.08 249)
-
Step 500
500
#558EC5
oklch(63.1% 0.103 248.9)
-
Step 600
600
#3877B1
oklch(55.5% 0.111 248.8)
-
Step 700
700
#2A6498
oklch(49% 0.103 248.6)
-
Step 800
800
#24527C
oklch(42.7% 0.086 248.7)
-
Step 900
900
#234463
oklch(37.7% 0.066 248.6)
-
Step 950
950 (this color)
#122537
oklch(25.8% 0.042 248.6)
#122537 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) | #1D2638 | 0.016 |
| Deuteranopia (no green cones) | #192237 | 0.013 |
| Tritanopia (no blue cones) | #00292B | 0.036 |
| Achromatopsia (no color) | #242424 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #122537
#122537
oklch(25.8% 0.042 248.6)
- #311F0B
#311F0B
oklch(25.7% 0.042 66.8)
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 #122537, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.015
- Dark #1B2431 ΔE 0.015
- Jet #212529 ΔE 0.033
- Rich Black #0D1B2A ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.052
- Gunmetal #293241 ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.075
- Marine #042E60 ΔE 0.076
Use #122537 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.