#1F202D
Closest named color: Dark (#1B2431). oklch(24.9% 0.025 281), rgb(31, 32, 45).
Aa
White text reads best on this color (16.11:1).
About this color
#1F202D is a very dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Dark (#1B2431), ΔE 0.015 away. White text reads best on it, at 16.11:1.
| Hue family | Neutrals |
| Lightness | very dark (25%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Dark (#1B2431) |
| Black text | 1.30:1 |
| White text | 16.11:1 |
Values
| HEX | #1F202D |
| RGB | rgb(31, 32, 45) |
| HSL | hsl(236, 18%, 15%) |
| OKLCH | oklch(24.9% 0.025 281) |
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 #1F202D | 16.11:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #1F202D | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #1F202D text on white | 16.11:1 | AAA | Lc 103.1 | Preferred for body text |
| #1F202D text on black | 1.30:1 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9EF
oklch(93.6% 0.008 286.2)
-
Step 200
200
#D7D8E4
oklch(88.5% 0.016 282.2)
-
Step 300
300
#BDBFD4
oklch(81% 0.029 281.4)
-
Step 400
400
#9B9EBE
oklch(70.8% 0.047 280.9)
-
Step 500
500
#8386AD
oklch(63.2% 0.059 281.1)
-
Step 600
600
#6C6F99
oklch(55.6% 0.065 280.9)
-
Step 700
700
#5A5D83
oklch(49.1% 0.061 280.4)
-
Step 800
800
#4A4C6A
oklch(42.7% 0.05 281.1)
-
Step 900
900
#3E3F56
oklch(37.7% 0.039 282.4)
-
Step 950
950 (this color)
#1F202D
oklch(24.9% 0.025 281)
#1F202D 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) | #1C212E | 0.006 |
| Deuteranopia (no green cones) | #1C202D | 0.005 |
| Tritanopia (no blue cones) | #1C2224 | 0.022 |
| Achromatopsia (no color) | #212121 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F202D
#1F202D
oklch(24.9% 0.025 281)
- #242214
#242214
oklch(25% 0.025 101.1)
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 #1F202D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.015
- Jet #212529 ΔE 0.022
- Oxford Blue #1B263B ΔE 0.029
- Rich Black #0D1B2A ΔE 0.036
- Space Cadet #2B2D42 ΔE 0.058
- Gunmetal #293241 ΔE 0.068
- Dark Brown #341C02 ΔE 0.076
- Eggplant #380835 ΔE 0.081
Use #1F202D 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.