#191E2E
Closest named color: Dark (#1B2431). oklch(23.8% 0.032 270.5), rgb(25, 30, 46).
Aa
White text reads best on this color (16.58:1).
About this color
#191E2E is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.032 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.021 away. White text reads best on it, at 16.58:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.26:1 |
| White text | 16.58:1 |
Values
| HEX | #191E2E |
| RGB | rgb(25, 30, 46) |
| HSL | hsl(226, 30%, 14%) |
| OKLCH | oklch(23.8% 0.032 270.5) |
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 #191E2E | 16.58:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #191E2E | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #191E2E text on white | 16.58:1 | AAA | Lc 103.5 | Preferred for body text |
| #191E2E text on black | 1.26:1 | 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
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D4D9E7
oklch(88.6% 0.02 270.2)
-
Step 300
300
#B7C0DA
oklch(80.9% 0.038 270.4)
-
Step 400
400
#929FC7
oklch(70.6% 0.061 270.8)
-
Step 500
500
#7887B9
oklch(63.1% 0.078 271.2)
-
Step 600
600
#6171A5
oklch(55.7% 0.083 270.5)
-
Step 700
700
#505E8D
oklch(49.1% 0.078 270.7)
-
Step 800
800
#414D73
oklch(42.7% 0.065 270.1)
-
Step 900
900
#37405D
oklch(37.6% 0.051 270.6)
-
Step 950
950 (this color)
#191E2E
oklch(23.8% 0.032 270.5)
#191E2E 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) | #191F2F | 0.004 |
| Deuteranopia (no green cones) | #171E2E | 0.003 |
| Tritanopia (no blue cones) | #132124 | 0.027 |
| Achromatopsia (no color) | #1E1E1E | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #191E2E
#191E2E
oklch(23.8% 0.032 270.5)
- #241E0C
#241E0C
oklch(23.7% 0.032 91.4)
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 #191E2E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.021
- Rich Black #0D1B2A ΔE 0.024
- Oxford Blue #1B263B ΔE 0.033
- Jet #212529 ΔE 0.033
- Space Cadet #2B2D42 ΔE 0.067
- Rich Navy #001219 ΔE 0.074
- Navy Blue #001146 ΔE 0.076
- Gunmetal #293241 ΔE 0.078
Use #191E2E 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.