#102127
Closest named color: Rich Black (#0D1B2A). oklch(23.6% 0.025 222.6), rgb(16, 33, 39).
Aa
White text reads best on this color (16.55:1).
About this color
#102127 is a very dark close to neutral grey. In OKLCH its lightness is 24%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.026 away. White text reads best on it, at 16.55:1.
| Hue family | Neutrals |
| Lightness | very dark (24%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.26:1 |
| White text | 16.55:1 |
Values
| HEX | #102127 |
| RGB | rgb(16, 33, 39) |
| HSL | hsl(196, 42%, 11%) |
| OKLCH | oklch(23.6% 0.025 222.6) |
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 #102127 | 16.55:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #102127 | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #102127 text on white | 16.55:1 | AAA | Lc 103.4 | Preferred for body text |
| #102127 text on black | 1.26:1 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CEDCE1
oklch(88.5% 0.017 221.1)
-
Step 300
300
#ACC5CF
oklch(80.8% 0.031 223.9)
-
Step 400
400
#80A8B7
oklch(70.8% 0.049 222.9)
-
Step 500
500
#5E92A5
oklch(63.1% 0.062 223.1)
-
Step 600
600
#437C90
oklch(55.5% 0.067 223)
-
Step 700
700
#35697A
oklch(49.2% 0.062 221.7)
-
Step 800
800
#2C5564
oklch(42.6% 0.052 224)
-
Step 900
900
#284651
oklch(37.5% 0.04 223.5)
-
Step 950
950 (this color)
#102127
oklch(23.6% 0.025 222.6)
#102127 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) | #1E2027 | 0.022 |
| Deuteranopia (no green cones) | #1A1E27 | 0.018 |
| Tritanopia (no blue cones) | #062323 | 0.017 |
| Achromatopsia (no color) | #1F1F1F | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102127
#102127
oklch(23.6% 0.025 222.6)
- #291A15
#291A15
oklch(23.5% 0.026 39.2)
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 #102127, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.026
- Dark #1B2431 ΔE 0.027
- Jet #212529 ΔE 0.032
- Oxford Blue #1B263B ΔE 0.044
- Rich Navy #001219 ΔE 0.067
- Space Cadet #2B2D42 ΔE 0.076
- Dark Brown #341C02 ΔE 0.080
- Gunmetal #293241 ΔE 0.082
Use #102127 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.