#15282F
Closest named color: Dark (#1B2431). oklch(26.4% 0.028 223.5), rgb(21, 40, 47).
Aa
White text reads best on this color (15.25:1).
About this color
#15282F is a dark close to neutral grey. In OKLCH its lightness is 26%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Dark (#1B2431), ΔE 0.017 away. White text reads best on it, at 15.25:1.
| Hue family | Neutrals |
| Lightness | dark (26%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Dark (#1B2431) |
| Black text | 1.37:1 |
| White text | 15.25:1 |
Values
| HEX | #15282F |
| RGB | rgb(21, 40, 47) |
| HSL | hsl(196, 38%, 13%) |
| OKLCH | oklch(26.4% 0.028 223.5) |
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 #15282F | 15.25:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #15282F | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #15282F text on white | 15.25:1 | AAA | Lc 102.1 | Preferred for body text |
| #15282F text on black | 1.37:1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CDDCE2
oklch(88.5% 0.018 223.6)
-
Step 300
300
#AAC6D1
oklch(80.9% 0.034 223.5)
-
Step 400
400
#7CA8B9
oklch(70.6% 0.053 223.8)
-
Step 500
500
#5993A8
oklch(63.2% 0.068 223.2)
-
Step 600
600
#3D7D93
oklch(55.7% 0.074 223.1)
-
Step 700
700
#2E697D
oklch(49% 0.069 223.2)
-
Step 800
800
#285666
oklch(42.8% 0.057 223.4)
-
Step 900
900
#254753
oklch(37.7% 0.045 223)
-
Step 950
950 (this color)
#15282F
oklch(26.4% 0.028 223.5)
#15282F 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) | #24272F | 0.022 |
| Deuteranopia (no green cones) | #20242F | 0.020 |
| Tritanopia (no blue cones) | #092A2A | 0.019 |
| Achromatopsia (no color) | #252525 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15282F
#15282F
oklch(26.4% 0.028 223.5)
- #31211A
#31211A
oklch(26.5% 0.028 44.6)
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 #15282F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.017
- Jet #212529 ΔE 0.020
- Oxford Blue #1B263B ΔE 0.028
- Rich Black #0D1B2A ΔE 0.049
- Space Cadet #2B2D42 ΔE 0.052
- Gunmetal #293241 ΔE 0.055
- Midnight Green #073B4C ΔE 0.072
- Dark Blue Grey #1F3B4D ΔE 0.078
Use #15282F 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.