#191D30
Closest named color: Rich Black (#0D1B2A). oklch(23.7% 0.037 274.2), rgb(25, 29, 48).
Aa
White text reads best on this color (16.66:1).
About this color
#191D30 is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.037 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.024 away. White text reads best on it, at 16.66:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.25:1 |
| White text | 16.66:1 |
Values
| HEX | #191D30 |
| RGB | rgb(25, 29, 48) |
| HSL | hsl(230, 32%, 14%) |
| OKLCH | oklch(23.7% 0.037 274.2) |
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 #191D30 | 16.66:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #191D30 | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #191D30 text on white | 16.66:1 | AAA | Lc 103.6 | Preferred for body text |
| #191D30 text on black | 1.25:1 | 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
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D4D8EA
oklch(88.5% 0.025 275.9)
-
Step 300
300
#B7BFDE
oklch(80.8% 0.045 273.9)
-
Step 400
400
#939ECD
oklch(70.8% 0.07 274.3)
-
Step 500
500
#7985C0
oklch(63.1% 0.09 274.7)
-
Step 600
600
#626EAC
oklch(55.5% 0.097 274.5)
-
Step 700
700
#515C94
oklch(49.1% 0.091 274.2)
-
Step 800
800
#424B78
oklch(42.6% 0.076 274.2)
-
Step 900
900
#383F61
oklch(37.7% 0.059 274.4)
-
Step 950
950 (this color)
#191D30
oklch(23.7% 0.037 274.2)
#191D30 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) | #171F31 | 0.007 |
| Deuteranopia (no green cones) | #151D30 | 0.007 |
| Tritanopia (no blue cones) | #122124 | 0.033 |
| Achromatopsia (no color) | #1E1E1E | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #191D30
#191D30
oklch(23.7% 0.037 274.2)
- #241E08
#241E08
oklch(23.6% 0.037 94.2)
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 #191D30, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.024
- Dark #1B2431 ΔE 0.025
- Oxford Blue #1B263B ΔE 0.034
- Jet #212529 ΔE 0.039
- Space Cadet #2B2D42 ΔE 0.068
- Navy Blue #001146 ΔE 0.071
- Rich Navy #001219 ΔE 0.074
- Gunmetal #293241 ΔE 0.080
Use #191D30 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.