#1A2137
Closest named color: Oxford Blue (#1B263B). oklch(25.3% 0.043 269.7), rgb(26, 33, 55).
Aa
White text reads best on this color (15.94:1).
About this color
#1A2137 is a dark, muted blue. In OKLCH its lightness is 25%, its chroma 0.043 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.017 away. White text reads best on it, at 15.94:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.31:1 |
| White text | 15.94:1 |
Values
| HEX | #1A2137 |
| RGB | rgb(26, 33, 55) |
| HSL | hsl(226, 36%, 16%) |
| OKLCH | oklch(25.3% 0.043 269.7) |
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 #1A2137 | 15.94:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #1A2137 | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #1A2137 text on white | 15.94:1 | AAA | Lc 102.9 | Preferred for body text |
| #1A2137 text on black | 1.31:1 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D1D9ED
oklch(88.5% 0.029 268.3)
-
Step 300
300
#B3C0E2
oklch(80.9% 0.05 268.8)
-
Step 400
400
#8C9FD4
oklch(70.8% 0.081 269)
-
Step 500
500
#7086C9
oklch(63.1% 0.105 269.4)
-
Step 600
600
#596FB6
oklch(55.7% 0.114 269.5)
-
Step 700
700
#495C9C
oklch(49% 0.105 269.7)
-
Step 800
800
#3C4C7F
oklch(42.8% 0.087 269.3)
-
Step 900
900
#333F66
oklch(37.6% 0.069 269.9)
-
Step 950
950 (this color)
#1A2137
oklch(25.3% 0.043 269.7)
#1A2137 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) | #192338 | 0.007 |
| Deuteranopia (no green cones) | #162137 | 0.006 |
| Tritanopia (no blue cones) | #0F2629 | 0.040 |
| Achromatopsia (no color) | #222222 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A2137
#1A2137
oklch(25.3% 0.043 269.7)
- #2A2107
#2A2107
oklch(25.2% 0.042 89.9)
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 #1A2137, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.017
- Dark #1B2431 ΔE 0.018
- Jet #212529 ΔE 0.036
- Rich Black #0D1B2A ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.053
- Gunmetal #293241 ΔE 0.064
- Navy Blue #001146 ΔE 0.073
- Marine #042E60 ΔE 0.080
Use #1A2137 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.