#1E203A
Closest named color: Oxford Blue (#1B263B). oklch(25.5% 0.049 279), rgb(30, 32, 58).
Aa
White text reads best on this color (15.87:1).
About this color
#1E203A is a dark, muted blue. In OKLCH its lightness is 26%, its chroma 0.049 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.020 away. White text reads best on it, at 15.87:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.32:1 |
| White text | 15.87:1 |
Values
| HEX | #1E203A |
| RGB | rgb(30, 32, 58) |
| HSL | hsl(236, 32%, 17%) |
| OKLCH | oklch(25.5% 0.049 279) |
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 #1E203A | 15.87:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #1E203A | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #1E203A text on white | 15.87:1 | AAA | Lc 102.8 | Preferred for body text |
| #1E203A text on black | 1.32:1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D4D7EF
oklch(88.4% 0.033 280)
-
Step 300
300
#B8BDE6
oklch(80.8% 0.058 279.6)
-
Step 400
400
#949BDA
oklch(70.8% 0.092 278.9)
-
Step 500
500
#7B81D0
oklch(63.2% 0.118 279.1)
-
Step 600
600
#6469BD
oklch(55.6% 0.129 278.8)
-
Step 700
700
#5357A3
oklch(49.1% 0.12 278.7)
-
Step 800
800
#444784
oklch(42.6% 0.1 279.1)
-
Step 900
900
#393C6A
oklch(37.6% 0.078 279.1)
-
Step 950
950 (this color)
#1E203A
oklch(25.5% 0.049 279)
#1E203A 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) | #17233B | 0.014 |
| Deuteranopia (no green cones) | #152139 | 0.015 |
| Tritanopia (no blue cones) | #15252A | 0.042 |
| Achromatopsia (no color) | #222222 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E203A
#1E203A
oklch(25.5% 0.049 279)
- #292303
#292303
oklch(25.6% 0.049 98.7)
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 #1E203A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.020
- Dark #1B2431 ΔE 0.025
- Jet #212529 ΔE 0.041
- Rich Black #0D1B2A ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.051
- Gunmetal #293241 ΔE 0.064
- Navy Blue #001146 ΔE 0.073
- Dark Indigo #1F0954 ΔE 0.075
Use #1E203A 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.