#152128
Closest named color: Dark (#1B2431). oklch(24% 0.022 234.5), rgb(21, 33, 40).
Aa
White text reads best on this color (16.40:1).
About this color
#152128 is a very dark close to neutral grey. In OKLCH its lightness is 24%, its chroma 0.022. It has too little chroma to lean warm or cool. The nearest named color is Dark (#1B2431), ΔE 0.021 away. White text reads best on it, at 16.40:1.
| Hue family | Neutrals |
| Lightness | very dark (24%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Dark (#1B2431) |
| Black text | 1.28:1 |
| White text | 16.40:1 |
Values
| HEX | #152128 |
| RGB | rgb(21, 33, 40) |
| HSL | hsl(202, 31%, 12%) |
| OKLCH | oklch(24% 0.022 234.5) |
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 #152128 | 16.40:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #152128 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #152128 text on white | 16.40:1 | AAA | Lc 103.3 | Preferred for body text |
| #152128 text on black | 1.28:1 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D1DBE1
oklch(88.6% 0.014 233.8)
-
Step 300
300
#B1C4CF
oklch(80.9% 0.026 233.1)
-
Step 400
400
#88A5B7
oklch(70.6% 0.042 235.4)
-
Step 500
500
#6A8FA5
oklch(63.1% 0.053 234.8)
-
Step 600
600
#527990
oklch(55.6% 0.057 235.1)
-
Step 700
700
#42667A
oklch(49.1% 0.052 233.6)
-
Step 800
800
#375364
oklch(42.7% 0.044 235.9)
-
Step 900
900
#304551
oklch(37.8% 0.033 233.9)
-
Step 950
950 (this color)
#152128
oklch(24% 0.022 234.5)
#152128 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) | #1E2128 | 0.015 |
| Deuteranopia (no green cones) | #1B1E28 | 0.014 |
| Tritanopia (no blue cones) | #0E2323 | 0.017 |
| Achromatopsia (no color) | #1F1F1F | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #152128
#152128
oklch(24% 0.022 234.5)
- #271D15
#271D15
oklch(24% 0.021 60.2)
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 #152128, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.021
- Jet #212529 ΔE 0.026
- Rich Black #0D1B2A ΔE 0.027
- Oxford Blue #1B263B ΔE 0.039
- Space Cadet #2B2D42 ΔE 0.071
- Rich Navy #001219 ΔE 0.072
- Dark Brown #341C02 ΔE 0.077
- Gunmetal #293241 ΔE 0.077
Use #152128 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.