#1F282F
Closest named color: Jet (#212529). oklch(27.1% 0.018 241.7), rgb(31, 40, 47).
Aa
White text reads best on this color (14.96:1).
About this color
#1F282F is a dark close to neutral grey. In OKLCH its lightness is 27%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.013 away. White text reads best on it, at 14.96:1.
| Hue family | Neutrals |
| Lightness | dark (27%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.40:1 |
| White text | 14.96:1 |
Values
| HEX | #1F282F |
| RGB | rgb(31, 40, 47) |
| HSL | hsl(206, 21%, 15%) |
| OKLCH | oklch(27.1% 0.018 241.7) |
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 #1F282F | 14.96:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #1F282F | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #1F282F text on white | 14.96:1 | AAA | Lc 101.8 | Preferred for body text |
| #1F282F text on black | 1.40:1 | 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
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D3DAE0
oklch(88.5% 0.011 243.7)
-
Step 300
300
#B5C3CE
oklch(81% 0.022 241.4)
-
Step 400
400
#8EA4B5
oklch(70.7% 0.035 241.3)
-
Step 500
500
#728DA2
oklch(63% 0.044 241.8)
-
Step 600
600
#5A778D
oklch(55.5% 0.048 241.4)
-
Step 700
700
#4A6478
oklch(49% 0.045 241.9)
-
Step 800
800
#3D5262
oklch(42.8% 0.037 241.5)
-
Step 900
900
#344450
oklch(37.8% 0.029 240.9)
-
Step 950
950 (this color)
#1F282F
oklch(27.1% 0.018 241.7)
#1F282F 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) | #25282F | 0.010 |
| Deuteranopia (no green cones) | #23262F | 0.009 |
| Tritanopia (no blue cones) | #1A2A2A | 0.016 |
| Achromatopsia (no color) | #272727 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F282F
#1F282F
oklch(27.1% 0.018 241.7)
- #2D251E
#2D251E
oklch(27.1% 0.017 63.2)
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 #1F282F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.013
- Dark #1B2431 ΔE 0.018
- Oxford Blue #1B263B ΔE 0.026
- Space Cadet #2B2D42 ΔE 0.043
- Gunmetal #293241 ΔE 0.046
- Rich Black #0D1B2A ΔE 0.057
- Midnight Green #073B4C ΔE 0.071
- Dark Blue Grey #1F3B4D ΔE 0.073
Use #1F282F 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.