#151E1A
Closest named color: Rich Black (#0D1B2A). oklch(22.5% 0.015 166.1), rgb(21, 30, 26).
Aa
White text reads best on this color (17.03:1).
About this color
#151E1A is a very dark close to neutral grey. In OKLCH its lightness is 22%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.038 away. White text reads best on it, at 17.03:1.
| Hue family | Neutrals |
| Lightness | very dark (22%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.23:1 |
| White text | 17.03:1 |
Values
| HEX | #151E1A |
| RGB | rgb(21, 30, 26) |
| HSL | hsl(153, 18%, 10%) |
| OKLCH | oklch(22.5% 0.015 166.1) |
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 #151E1A | 17.03:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #151E1A | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #151E1A text on white | 17.03:1 | AAA | Lc 103.9 | Preferred for body text |
| #151E1A text on black | 1.23:1 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBE9
oklch(93.6% 0.005 165)
-
Step 200
200
#D3DBD7
oklch(88.4% 0.01 164.8)
-
Step 300
300
#B6C4BE
oklch(80.8% 0.017 168.4)
-
Step 400
400
#90A79C
oklch(70.7% 0.03 165.1)
-
Step 500
500
#759184
oklch(63.1% 0.037 165.3)
-
Step 600
600
#5D7B6E
oklch(55.6% 0.04 166.5)
-
Step 700
700
#4D685C
oklch(49.2% 0.037 165.8)
-
Step 800
800
#3F554B
oklch(42.8% 0.032 165.3)
-
Step 900
900
#36463F
oklch(37.8% 0.024 166.6)
-
Step 950
950 (this color)
#151E1A
oklch(22.5% 0.015 166.1)
#151E1A 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) | #1E1D1A | 0.016 |
| Deuteranopia (no green cones) | #1C1C1A | 0.014 |
| Tritanopia (no blue cones) | #131E1D | 0.006 |
| Achromatopsia (no color) | #1C1C1C | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #151E1A
#151E1A
oklch(22.5% 0.015 166.1)
- #21191D
#21191D
oklch(22.5% 0.015 346.8)
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 #151E1A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.038
- Jet #212529 ΔE 0.041
- Dark #1B2431 ΔE 0.046
- Rich Navy #001219 ΔE 0.062
- Oxford Blue #1B263B ΔE 0.064
- Dark Brown #341C02 ΔE 0.066
- Almost Black #070D0D ΔE 0.073
- Dark Forest Green #002D04 ΔE 0.077
Use #151E1A 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.