#304133
Closest named color: Charcoal Grey (#3C4142). oklch(35.6% 0.033 149.8), rgb(48, 65, 51).
Aa
White text reads best on this color (10.88:1).
About this color
#304133 is a dark, muted green. In OKLCH its lightness is 36%, its chroma 0.033 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.033 away. White text reads best on it, at 10.88:1.
| Hue family | Greens |
| Lightness | dark (36%) |
| Chroma | muted (0.033) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.92:1 |
| White text | 10.88:1 |
Values
| HEX | #304133 |
| RGB | rgb(48, 65, 51) |
| HSL | hsl(131, 15%, 22%) |
| OKLCH | oklch(35.6% 0.033 149.8) |
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 #304133 | 10.88:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #304133 | 1.92:1 | Fails | Lc 8.7 | Not readable |
| #304133 text on white | 10.88:1 | AAA | Lc 95.2 | Preferred for body text |
| #304133 text on black | 1.92:1 | Fails | Lc -7.4 | 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 900.
-
Step 50
50
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE7
oklch(93.6% 0.007 145.5)
-
Step 200
200
#D3DCD4
oklch(88.5% 0.015 148.8)
-
Step 300
300
#B6C5B8
oklch(80.8% 0.024 149.3)
-
Step 400
400
#90A894
oklch(70.7% 0.039 150)
-
Step 500
500
#74927A
oklch(63% 0.049 150.8)
-
Step 600
600
#5D7D62
oklch(55.7% 0.055 149)
-
Step 700
700
#4C6951
oklch(49.1% 0.051 149.5)
-
Step 800
800
#3F5643
oklch(42.8% 0.042 149.6)
-
Step 900
900 (this color)
#304133
oklch(35.6% 0.033 149.8)
-
Step 950
950
#1F2921
oklch(26.9% 0.02 150.8)
#304133 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) | #413E32 | 0.027 |
| Deuteranopia (no green cones) | #3E3C34 | 0.027 |
| Tritanopia (no blue cones) | #2E403D | 0.018 |
| Achromatopsia (no color) | #3D3D3D | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #304133
#304133
oklch(35.6% 0.033 149.8)
- #463644
#463644
oklch(35.6% 0.032 330.4)
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 #304133, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.033
- Onyx #343A40 ΔE 0.038
- Evergreen #05472A ΔE 0.048
- Pakistan Green #283618 ΔE 0.051
- Charcoal #264653 ΔE 0.052
- Dark Teal #014D4E ΔE 0.054
- Dark Olive #373E02 ΔE 0.055
- Dark Slate Gray #2F4F4F ΔE 0.055
Use #304133 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.