#1E2131
Closest named color: Dark (#1B2431). oklch(25.2% 0.031 275.8), rgb(30, 33, 49).
Aa
White text reads best on this color (15.94:1).
About this color
#1E2131 is a dark, muted blue. In OKLCH its lightness is 25%, its chroma 0.031 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.011 away. White text reads best on it, at 15.94:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.31:1 |
| White text | 15.94:1 |
Values
| HEX | #1E2131 |
| RGB | rgb(30, 33, 49) |
| HSL | hsl(231, 24%, 15%) |
| OKLCH | oklch(25.2% 0.031 275.8) |
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 #1E2131 | 15.94:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #1E2131 | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #1E2131 text on white | 15.94:1 | AAA | Lc 102.9 | Preferred for body text |
| #1E2131 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D5D8E7
oklch(88.4% 0.021 276.9)
-
Step 300
300
#BABFD9
oklch(80.9% 0.037 276.9)
-
Step 400
400
#969EC5
oklch(70.7% 0.058 275.8)
-
Step 500
500
#7D86B7
oklch(63.2% 0.075 276)
-
Step 600
600
#666FA3
oklch(55.6% 0.082 275.9)
-
Step 700
700
#555D8B
oklch(49.1% 0.074 275.8)
-
Step 800
800
#454C71
oklch(42.7% 0.062 275.3)
-
Step 900
900
#3A3F5B
oklch(37.6% 0.048 276)
-
Step 950
950 (this color)
#1E2131
oklch(25.2% 0.031 275.8)
#1E2131 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) | #1C2332 | 0.007 |
| Deuteranopia (no green cones) | #1B2131 | 0.005 |
| Tritanopia (no blue cones) | #192427 | 0.026 |
| Achromatopsia (no color) | #222222 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E2131
#1E2131
oklch(25.2% 0.031 275.8)
- #272211
#272211
oklch(25.3% 0.03 93.6)
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 #1E2131, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.011
- Oxford Blue #1B263B ΔE 0.022
- Jet #212529 ΔE 0.025
- Rich Black #0D1B2A ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.053
- Gunmetal #293241 ΔE 0.063
- Eggplant #380835 ΔE 0.082
- Dark Brown #341C02 ΔE 0.082
Use #1E2131 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.