#283238
Closest named color: Gunmetal (#293241). oklch(31% 0.017 234.5), rgb(40, 50, 56).
Aa
White text reads best on this color (13.09:1).
About this color
#283238 is a dark close to neutral grey. In OKLCH its lightness is 31%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.017 away. White text reads best on it, at 13.09:1.
| Hue family | Neutrals |
| Lightness | dark (31%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.60:1 |
| White text | 13.09:1 |
Values
| HEX | #283238 |
| RGB | rgb(40, 50, 56) |
| HSL | hsl(203, 17%, 19%) |
| OKLCH | oklch(31% 0.017 234.5) |
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 #283238 | 13.09:1 | AAA | Lc -102.6 | Preferred for body text |
| Black text on #283238 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #283238 text on white | 13.09:1 | AAA | Lc 99.4 | Preferred for body text |
| #283238 text on black | 1.60:1 | 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
#E6EAED
oklch(93.5% 0.006 239.8)
-
Step 200
200
#D2DAE0
oklch(88.4% 0.012 239.9)
-
Step 300
300
#B4C3CC
oklch(80.8% 0.021 233.9)
-
Step 400
400
#8DA4B2
oklch(70.6% 0.033 234.7)
-
Step 500
500
#718EA0
oklch(63.1% 0.043 235.6)
-
Step 600
600
#59788A
oklch(55.6% 0.045 234.1)
-
Step 700
700
#496576
oklch(49.1% 0.043 235.4)
-
Step 800
800
#3C5260
oklch(42.6% 0.036 236.6)
-
Step 900
900
#33444E
oklch(37.6% 0.028 234.3)
-
Step 950
950 (this color)
#283238
oklch(31% 0.017 234.5)
#283238 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) | #2F3238 | 0.011 |
| Deuteranopia (no green cones) | #2D3038 | 0.010 |
| Tritanopia (no blue cones) | #233434 | 0.014 |
| Achromatopsia (no color) | #313131 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #283238
#283238
oklch(31% 0.017 234.5)
- #382E28
#382E28
oklch(31% 0.018 52.8)
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 #283238, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.017
- Space Cadet #2B2D42 ΔE 0.029
- Onyx #343A40 ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.041
- Midnight Green #073B4C ΔE 0.046
- Jet #212529 ΔE 0.049
- Oxford Blue #1B263B ΔE 0.050
- Dark #1B2431 ΔE 0.054
Use #283238 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.