#1E253F
Closest named color: Oxford Blue (#1B263B). oklch(27.1% 0.049 271.4), rgb(30, 37, 63).
Aa
White text reads best on this color (15.09:1).
About this color
#1E253F is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.049 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.010 away. White text reads best on it, at 15.09:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.39:1 |
| White text | 15.09:1 |
Values
| HEX | #1E253F |
| RGB | rgb(30, 37, 63) |
| HSL | hsl(227, 35%, 18%) |
| OKLCH | oklch(27.1% 0.049 271.4) |
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 #1E253F | 15.09:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #1E253F | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #1E253F text on white | 15.09:1 | AAA | Lc 101.9 | Preferred for body text |
| #1E253F text on black | 1.39:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5E9F6
oklch(93.5% 0.018 272.3)
-
Step 200
200
#D1D8EF
oklch(88.4% 0.033 272.2)
-
Step 300
300
#B3BFE7
oklch(80.9% 0.058 272)
-
Step 400
400
#8B9DDC
oklch(70.6% 0.095 271.6)
-
Step 500
500
#6F84D2
oklch(63.1% 0.12 271.2)
-
Step 600
600
#586CBF
oklch(55.5% 0.131 271.4)
-
Step 700
700
#485AA5
oklch(49.1% 0.122 271.2)
-
Step 800
800
#3B4A85
oklch(42.7% 0.099 270.9)
-
Step 900
900
#333E6B
oklch(37.7% 0.078 271.8)
-
Step 950
950 (this color)
#1E253F
oklch(27.1% 0.049 271.4)
#1E253F 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) | #1B2840 | 0.010 |
| Deuteranopia (no green cones) | #18253E | 0.009 |
| Tritanopia (no blue cones) | #122A2F | 0.043 |
| Achromatopsia (no color) | #262626 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E253F
#1E253F
oklch(27.1% 0.049 271.4)
- #302605
#302605
oklch(27.3% 0.05 91.7)
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 #1E253F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.010
- Dark #1B2431 ΔE 0.027
- Space Cadet #2B2D42 ΔE 0.036
- Jet #212529 ΔE 0.042
- Gunmetal #293241 ΔE 0.049
- Rich Black #0D1B2A ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.061
- Marine #042E60 ΔE 0.064
Use #1E253F 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.