#1F2C23
Closest named color: Jet (#212529). oklch(27.8% 0.024 154.4), rgb(31, 44, 35).
Aa
White text reads best on this color (14.55:1).
About this color
#1F2C23 is a dark close to neutral grey. In OKLCH its lightness is 28%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.031 away. White text reads best on it, at 14.55:1.
| Hue family | Neutrals |
| Lightness | dark (28%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.44:1 |
| White text | 14.55:1 |
Values
| HEX | #1F2C23 |
| RGB | rgb(31, 44, 35) |
| HSL | hsl(138, 17%, 15%) |
| OKLCH | oklch(27.8% 0.024 154.4) |
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 #1F2C23 | 14.55:1 | AAA | Lc -104.2 | Preferred for body text |
| Black text on #1F2C23 | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #1F2C23 text on white | 14.55:1 | AAA | Lc 101.3 | Preferred for body text |
| #1F2C23 text on black | 1.44:1 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E6EBE7
oklch(93.5% 0.008 151.9)
-
Step 200
200
#D1DCD4
oklch(88.4% 0.016 154.4)
-
Step 300
300
#B3C6B8
oklch(80.8% 0.028 153.8)
-
Step 400
400
#8BA994
oklch(70.6% 0.045 154.6)
-
Step 500
500
#6D947A
oklch(63% 0.058 155.2)
-
Step 600
600
#557F62
oklch(55.7% 0.065 153.7)
-
Step 700
700
#456B51
oklch(49.1% 0.06 153.8)
-
Step 800
800
#395743
oklch(42.7% 0.049 154.6)
-
Step 900
900
#314838
oklch(37.7% 0.04 153.8)
-
Step 950
950 (this color)
#1F2C23
oklch(27.8% 0.024 154.4)
#1F2C23 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) | #2C2A23 | 0.022 |
| Deuteranopia (no green cones) | #2A2823 | 0.022 |
| Tritanopia (no blue cones) | #1D2C29 | 0.011 |
| Achromatopsia (no color) | #292929 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F2C23
#1F2C23
oklch(27.8% 0.024 154.4)
- #30242D
#30242D
oklch(27.8% 0.024 335.3)
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 #1F2C23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.031
- Dark #1B2431 ΔE 0.046
- Pakistan Green #283618 ΔE 0.047
- Oxford Blue #1B263B ΔE 0.056
- Gunmetal #293241 ΔE 0.057
- Very Dark Green #062E03 ΔE 0.061
- Space Cadet #2B2D42 ΔE 0.062
- Dark Forest Green #002D04 ΔE 0.063
Use #1F2C23 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.