#102423
Closest named color: Jet (#212529). oklch(24.3% 0.026 191.4), rgb(16, 36, 35).
Aa
White text reads best on this color (16.17:1).
About this color
#102423 is a very dark close to neutral grey. In OKLCH its lightness is 24%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.029 away. White text reads best on it, at 16.17:1.
| Hue family | Neutrals |
| Lightness | very dark (24%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.29:1 |
| White text | 16.17:1 |
Values
| HEX | #102423 |
| RGB | rgb(16, 36, 35) |
| HSL | hsl(177, 38%, 10%) |
| OKLCH | oklch(24.3% 0.026 191.4) |
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 #102423 | 16.17:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #102423 | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #102423 text on white | 16.17:1 | AAA | Lc 103.1 | Preferred for body text |
| #102423 text on black | 1.29:1 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CDDDDC
oklch(88.5% 0.017 192.3)
-
Step 300
300
#ABC7C5
oklch(80.8% 0.03 191.3)
-
Step 400
400
#7DABA8
oklch(70.7% 0.049 191.1)
-
Step 500
500
#599693
oklch(63.1% 0.064 191.6)
-
Step 600
600
#3D807D
oklch(55.5% 0.068 191.5)
-
Step 700
700
#2E6C6A
oklch(49% 0.064 192.4)
-
Step 800
800
#285856
oklch(42.6% 0.052 191.8)
-
Step 900
900
#254947
oklch(37.8% 0.042 190.9)
-
Step 950
950 (this color)
#102423
oklch(24.3% 0.026 191.4)
#102423 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) | #222223 | 0.028 |
| Deuteranopia (no green cones) | #1E2023 | 0.024 |
| Tritanopia (no blue cones) | #072524 | 0.009 |
| Achromatopsia (no color) | #212121 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102423
#102423
oklch(24.3% 0.026 191.4)
- #2B1B1D
#2B1B1D
oklch(24.3% 0.026 10.9)
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 #102423, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.029
- Dark #1B2431 ΔE 0.033
- Rich Black #0D1B2A ΔE 0.041
- Oxford Blue #1B263B ΔE 0.049
- Dark Forest Green #002D04 ΔE 0.070
- Very Dark Green #062E03 ΔE 0.071
- Dark Brown #341C02 ΔE 0.074
- Rich Navy #001219 ΔE 0.076
Use #102423 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.