#1F282D
Closest named color: Jet (#212529). oklch(27% 0.016 232.4), rgb(31, 40, 45).
Aa
White text reads best on this color (15.00:1).
About this color
#1F282D is a dark close to neutral grey. In OKLCH its lightness is 27%, its chroma 0.016. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.011 away. White text reads best on it, at 15.00:1.
| Hue family | Neutrals |
| Lightness | dark (27%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.39:1 |
| White text | 15.00:1 |
Values
| HEX | #1F282D |
| RGB | rgb(31, 40, 45) |
| HSL | hsl(201, 18%, 15%) |
| OKLCH | oklch(27% 0.016 232.4) |
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 #1F282D | 15.00:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #1F282D | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #1F282D text on white | 15.00:1 | AAA | Lc 101.9 | Preferred for body text |
| #1F282D text on black | 1.39:1 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAED
oklch(93.5% 0.006 239.8)
-
Step 200
200
#D3DADF
oklch(88.4% 0.01 238.5)
-
Step 300
300
#B5C3CB
oklch(80.9% 0.019 232.6)
-
Step 400
400
#8FA4B0
oklch(70.6% 0.029 232.9)
-
Step 500
500
#738E9D
oklch(63.1% 0.038 232.5)
-
Step 600
600
#5B7888
oklch(55.6% 0.042 232.6)
-
Step 700
700
#4B6573
oklch(49.1% 0.038 232)
-
Step 800
800
#3E525E
oklch(42.7% 0.032 234.8)
-
Step 900
900
#35444D
oklch(37.7% 0.025 234.6)
-
Step 950
950 (this color)
#1F282D
oklch(27% 0.016 232.4)
#1F282D 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) | #26282D | 0.012 |
| Deuteranopia (no green cones) | #24262D | 0.010 |
| Tritanopia (no blue cones) | #1B292A | 0.010 |
| Achromatopsia (no color) | #272727 | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F282D
#1F282D
oklch(27% 0.016 232.4)
- #2D2520
#2D2520
oklch(27.2% 0.015 53.9)
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 #1F282D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.011
- Dark #1B2431 ΔE 0.020
- Oxford Blue #1B263B ΔE 0.030
- Space Cadet #2B2D42 ΔE 0.045
- Gunmetal #293241 ΔE 0.048
- Rich Black #0D1B2A ΔE 0.057
- Dark Brown #341C02 ΔE 0.072
- Pakistan Green #283618 ΔE 0.072
Use #1F282D 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.