#191A38
Closest named color: Rich Black (#0D1B2A). oklch(23.5% 0.057 279.6), rgb(25, 26, 56).
Aa
White text reads best on this color (16.85:1).
About this color
#191A38 is a very dark, muted blue. In OKLCH its lightness is 23%, its chroma 0.057 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.035 away. White text reads best on it, at 16.85:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.24:1 |
| White text | 16.85:1 |
Values
| HEX | #191A38 |
| RGB | rgb(25, 26, 56) |
| HSL | hsl(238, 38%, 16%) |
| OKLCH | oklch(23.5% 0.057 279.6) |
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 #191A38 | 16.85:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #191A38 | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #191A38 text on white | 16.85:1 | AAA | Lc 103.7 | Preferred for body text |
| #191A38 text on black | 1.24:1 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D3D7F2
oklch(88.4% 0.037 278.9)
-
Step 300
300
#B7BDEC
oklch(81% 0.067 279.1)
-
Step 400
400
#9399E3
oklch(70.7% 0.108 279.7)
-
Step 500
500
#7A7EDB
oklch(63.1% 0.138 279.8)
-
Step 600
600
#6465C8
oklch(55.5% 0.15 279.9)
-
Step 700
700
#5354AD
oklch(49.2% 0.139 279.5)
-
Step 800
800
#44458C
oklch(42.7% 0.115 279.8)
-
Step 900
900
#393B70
oklch(37.8% 0.089 279.6)
-
Step 950
950 (this color)
#191A38
oklch(23.5% 0.057 279.6)
#191A38 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) | #0E1E39 | 0.019 |
| Deuteranopia (no green cones) | #0B1C37 | 0.021 |
| Tritanopia (no blue cones) | #0E2026 | 0.048 |
| Achromatopsia (no color) | #1D1D1D | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #191A38
#191A38
oklch(23.5% 0.057 279.6)
- #241E00
#241E00
oklch(23.5% 0.049 98.6)
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 #191A38, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.035
- Oxford Blue #1B263B ΔE 0.040
- Dark #1B2431 ΔE 0.040
- Navy Blue #001146 ΔE 0.056
- Jet #212529 ΔE 0.056
- Dark Indigo #1F0954 ΔE 0.066
- Midnight Purple #280137 ΔE 0.068
- Very Dark Purple #2A0134 ΔE 0.070
Use #191A38 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.