#1E2139
Closest named color: Oxford Blue (#1B263B). oklch(25.7% 0.045 277.3), rgb(30, 33, 57).
Aa
White text reads best on this color (15.76:1).
About this color
#1E2139 is a dark, muted blue. In OKLCH its lightness is 26%, its chroma 0.045 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.016 away. White text reads best on it, at 15.76:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.33:1 |
| White text | 15.76:1 |
Values
| HEX | #1E2139 |
| RGB | rgb(30, 33, 57) |
| HSL | hsl(233, 31%, 17%) |
| OKLCH | oklch(25.7% 0.045 277.3) |
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 #1E2139 | 15.76:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #1E2139 | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #1E2139 text on white | 15.76:1 | AAA | Lc 102.7 | Preferred for body text |
| #1E2139 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D4D8ED
oklch(88.6% 0.029 277.2)
-
Step 300
300
#B7BEE4
oklch(80.9% 0.054 276.9)
-
Step 400
400
#939CD6
oklch(70.7% 0.085 277.2)
-
Step 500
500
#7982CB
oklch(63% 0.11 277.4)
-
Step 600
600
#636BB8
oklch(55.7% 0.119 277.3)
-
Step 700
700
#52599E
oklch(49.1% 0.11 277.2)
-
Step 800
800
#434980
oklch(42.7% 0.091 277.1)
-
Step 900
900
#383D67
oklch(37.6% 0.072 277.2)
-
Step 950
950 (this color)
#1E2139
oklch(25.7% 0.045 277.3)
#1E2139 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) | #19243A | 0.012 |
| Deuteranopia (no green cones) | #172238 | 0.012 |
| Tritanopia (no blue cones) | #16262A | 0.040 |
| Achromatopsia (no color) | #232323 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E2139
#1E2139
oklch(25.7% 0.045 277.3)
- #292306
#292306
oklch(25.6% 0.045 97.6)
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 #1E2139, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.016
- Dark #1B2431 ΔE 0.021
- Jet #212529 ΔE 0.038
- Rich Black #0D1B2A ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.048
- Gunmetal #293241 ΔE 0.061
- Navy Blue #001146 ΔE 0.076
- Prussian Blue #1D3557 ΔE 0.076
Use #1E2139 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.