#1A152F
Closest named color: Rich Black (#0D1B2A). oklch(21.7% 0.05 290.5), rgb(26, 21, 47).
Aa
White text reads best on this color (17.61:1).
About this color
#1A152F is a very dark, muted purple. In OKLCH its lightness is 22%, its chroma 0.050 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.032 away. White text reads best on it, at 17.61:1.
| Hue family | Purples |
| Lightness | very dark (22%) |
| Chroma | muted (0.050) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.19:1 |
| White text | 17.61:1 |
Values
| HEX | #1A152F |
| RGB | rgb(26, 21, 47) |
| HSL | hsl(252, 38%, 13%) |
| OKLCH | oklch(21.7% 0.05 290.5) |
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 #1A152F | 17.61:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #1A152F | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #1A152F text on white | 17.61:1 | AAA | Lc 104.4 | Preferred for body text |
| #1A152F text on black | 1.19:1 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D8D6EE
oklch(88.5% 0.033 289.5)
-
Step 300
300
#C0BBE5
oklch(81% 0.059 290.5)
-
Step 400
400
#A096D8
oklch(70.6% 0.096 290.7)
-
Step 500
500
#897BCD
oklch(63% 0.121 290.3)
-
Step 600
600
#7463BA
oklch(55.6% 0.132 290.4)
-
Step 700
700
#6252A0
oklch(49.2% 0.122 290.7)
-
Step 800
800
#4F4382
oklch(42.6% 0.102 290.1)
-
Step 900
900
#423968
oklch(37.7% 0.079 290.9)
-
Step 950
950 (this color)
#1A152F
oklch(21.7% 0.05 290.5)
#1A152F 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) | #0C1930 | 0.025 |
| Deuteranopia (no green cones) | #0C182E | 0.025 |
| Tritanopia (no blue cones) | #151A1F | 0.042 |
| Achromatopsia (no color) | #191919 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A152F
#1A152F
oklch(21.7% 0.05 290.5)
- #1B1C00
#1B1C00
oklch(21.8% 0.048 111.6)
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 #1A152F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.032
- Dark #1B2431 ΔE 0.051
- Oxford Blue #1B263B ΔE 0.057
- Midnight Purple #280137 ΔE 0.059
- Very Dark Purple #2A0134 ΔE 0.060
- Jet #212529 ΔE 0.063
- Navy Blue #001146 ΔE 0.063
- Rich Navy #001219 ΔE 0.068
Use #1A152F 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.