#102728
Closest named color: Jet (#212529). oklch(25.5% 0.029 199.2), rgb(16, 39, 40).
Aa
White text reads best on this color (15.63:1).
About this color
#102728 is a dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.025 away. White text reads best on it, at 15.63:1.
| Hue family | Neutrals |
| Lightness | dark (25%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.34:1 |
| White text | 15.63:1 |
Values
| HEX | #102728 |
| RGB | rgb(16, 39, 40) |
| HSL | hsl(183, 43%, 11%) |
| OKLCH | oklch(25.5% 0.029 199.2) |
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 #102728 | 15.63:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #102728 | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #102728 text on white | 15.63:1 | AAA | Lc 102.5 | Preferred for body text |
| #102728 text on black | 1.34:1 | 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
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CBDDDE
oklch(88.4% 0.019 200.8)
-
Step 300
300
#A8C8C9
oklch(81% 0.034 198.8)
-
Step 400
400
#77ABAE
oklch(70.6% 0.055 200.5)
-
Step 500
500
#51979A
oklch(63.2% 0.071 199.2)
-
Step 600
600
#318184
oklch(55.6% 0.077 198.6)
-
Step 700
700
#236D70
oklch(49.2% 0.071 199)
-
Step 800
800
#1F595B
oklch(42.8% 0.059 198.4)
-
Step 900
900
#20494B
oklch(37.7% 0.046 199.6)
-
Step 950
950 (this color)
#102728
oklch(25.5% 0.029 199.2)
#102728 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) | #242528 | 0.030 |
| Deuteranopia (no green cones) | #202228 | 0.028 |
| Tritanopia (no blue cones) | #042827 | 0.012 |
| Achromatopsia (no color) | #232323 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102728
#102728
oklch(25.5% 0.029 199.2)
- #2F1D1D
#2F1D1D
oklch(25.4% 0.028 19.2)
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 #102728, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.025
- Dark #1B2431 ΔE 0.028
- Oxford Blue #1B263B ΔE 0.042
- Rich Black #0D1B2A ΔE 0.047
- Space Cadet #2B2D42 ΔE 0.067
- Gunmetal #293241 ΔE 0.068
- Dark Forest Green #002D04 ΔE 0.071
- Very Dark Green #062E03 ΔE 0.072
Use #102728 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.