#203237
Closest named color: Gunmetal (#293241). oklch(30.4% 0.025 217), rgb(32, 50, 55).
Aa
White text reads best on this color (13.35:1).
About this color
#203237 is a dark close to neutral grey. In OKLCH its lightness is 30%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.024 away. White text reads best on it, at 13.35:1.
| Hue family | Neutrals |
| Lightness | dark (30%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.57:1 |
| White text | 13.35:1 |
Values
| HEX | #203237 |
| RGB | rgb(32, 50, 55) |
| HSL | hsl(193, 26%, 17%) |
| OKLCH | oklch(30.4% 0.025 217) |
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 #203237 | 13.35:1 | AAA | Lc -102.9 | Preferred for body text |
| Black text on #203237 | 1.57:1 | Fails | Lc 0.0 | Not readable |
| #203237 text on white | 13.35:1 | AAA | Lc 99.7 | Preferred for body text |
| #203237 text on black | 1.57:1 | 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
#CEDCE0
oklch(88.5% 0.016 216.7)
-
Step 300
300
#ACC6CD
oklch(80.9% 0.03 215.8)
-
Step 400
400
#7FA8B4
oklch(70.6% 0.048 217.7)
-
Step 500
500
#5D93A2
oklch(63.1% 0.061 217.3)
-
Step 600
600
#427D8D
oklch(55.6% 0.066 217.6)
-
Step 700
700
#336977
oklch(49% 0.061 216.9)
-
Step 800
800
#2B5661
oklch(42.7% 0.051 216.5)
-
Step 900
900
#28474F
oklch(37.7% 0.039 216.1)
-
Step 950
950 (this color)
#203237
oklch(30.4% 0.025 217)
#203237 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) | #2F3137 | 0.023 |
| Deuteranopia (no green cones) | #2B2E37 | 0.020 |
| Tritanopia (no blue cones) | #183434 | 0.014 |
| Achromatopsia (no color) | #2F2F2F | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #203237
#203237
oklch(30.4% 0.025 217)
- #3A2A26
#3A2A26
oklch(30.2% 0.025 34.4)
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 #203237, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.024
- Space Cadet #2B2D42 ΔE 0.035
- Midnight Green #073B4C ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.043
- Onyx #343A40 ΔE 0.044
- Jet #212529 ΔE 0.045
- Oxford Blue #1B263B ΔE 0.046
- Dark #1B2431 ΔE 0.049
Use #203237 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.