#15232E
Closest named color: Dark (#1B2431). oklch(24.9% 0.029 242.9), rgb(21, 35, 46).
Aa
White text reads best on this color (16.00:1).
About this color
#15232E is a very dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Dark (#1B2431), ΔE 0.012 away. White text reads best on it, at 16.00:1.
| Hue family | Neutrals |
| Lightness | very dark (25%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Dark (#1B2431) |
| Black text | 1.31:1 |
| White text | 16.00:1 |
Values
| HEX | #15232E |
| RGB | rgb(21, 35, 46) |
| HSL | hsl(206, 37%, 13%) |
| OKLCH | oklch(24.9% 0.029 242.9) |
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 #15232E | 16.00:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #15232E | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #15232E text on white | 16.00:1 | AAA | Lc 102.9 | Preferred for body text |
| #15232E text on black | 1.31:1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CFDBE5
oklch(88.5% 0.019 243)
-
Step 300
300
#AFC4D5
oklch(81% 0.033 242.4)
-
Step 400
400
#84A5C0
oklch(70.7% 0.054 243.3)
-
Step 500
500
#648FB0
oklch(63.1% 0.069 242.2)
-
Step 600
600
#4A789C
oklch(55.5% 0.076 243.3)
-
Step 700
700
#3B6585
oklch(49% 0.07 242.8)
-
Step 800
800
#31536C
oklch(42.7% 0.058 241.7)
-
Step 900
900
#2C4458
oklch(37.6% 0.046 244.6)
-
Step 950
950 (this color)
#15232E
oklch(24.9% 0.029 242.9)
#15232E 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) | #1E232F | 0.014 |
| Deuteranopia (no green cones) | #1B202E | 0.013 |
| Tritanopia (no blue cones) | #0B2627 | 0.023 |
| Achromatopsia (no color) | #212121 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15232E
#15232E
oklch(24.9% 0.029 242.9)
- #2B1E13
#2B1E13
oklch(24.8% 0.028 61.2)
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 #15232E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.012
- Jet #212529 ΔE 0.023
- Oxford Blue #1B263B ΔE 0.027
- Rich Black #0D1B2A ΔE 0.032
- Space Cadet #2B2D42 ΔE 0.061
- Gunmetal #293241 ΔE 0.067
- Rich Navy #001219 ΔE 0.081
- Dark Brown #341C02 ΔE 0.083
Use #15232E 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.