#2B4438
Closest named color: Charcoal Grey (#3C4142). oklch(36.2% 0.037 163), rgb(43, 68, 56).
Aa
White text reads best on this color (10.57:1).
About this color
#2B4438 is a dark, muted green. In OKLCH its lightness is 36%, its chroma 0.037 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.034 away. White text reads best on it, at 10.57:1.
| Hue family | Greens |
| Lightness | dark (36%) |
| Chroma | muted (0.037) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.98:1 |
| White text | 10.57:1 |
Values
| HEX | #2B4438 |
| RGB | rgb(43, 68, 56) |
| HSL | hsl(151, 23%, 22%) |
| OKLCH | oklch(36.2% 0.037 163) |
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 #2B4438 | 10.57:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #2B4438 | 1.98:1 | Fails | Lc 9.4 | Not readable |
| #2B4438 text on white | 10.57:1 | AAA | Lc 94.5 | Preferred for body text |
| #2B4438 text on black | 1.98:1 | Fails | Lc -8.1 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECE8
oklch(93.7% 0.009 161.3)
-
Step 200
200
#D0DCD6
oklch(88.4% 0.015 164.7)
-
Step 300
300
#B1C7BB
oklch(81% 0.029 161.9)
-
Step 400
400
#88AA99
oklch(70.8% 0.045 163.4)
-
Step 500
500
#699580
oklch(63.2% 0.058 163.6)
-
Step 600
600
#507F69
oklch(55.6% 0.062 163.3)
-
Step 700
700
#416B57
oklch(49.1% 0.057 162.7)
-
Step 800
800
#365747
oklch(42.6% 0.047 162.5)
-
Step 900
900 (this color)
#2B4438
oklch(36.2% 0.037 163)
-
Step 950
950
#1C2A23
oklch(27% 0.023 162.6)
#2B4438 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) | #434137 | 0.036 |
| Deuteranopia (no green cones) | #3F3E39 | 0.035 |
| Tritanopia (no blue cones) | #254441 | 0.016 |
| Achromatopsia (no color) | #3F3F3F | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4438
#2B4438
oklch(36.2% 0.037 163)
- #4C3643
#4C3643
oklch(36.3% 0.037 342.9)
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 #2B4438, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.034
- Onyx #343A40 ΔE 0.042
- Dark Teal #014D4E ΔE 0.043
- Evergreen #05472A ΔE 0.044
- Charcoal #264653 ΔE 0.045
- Dark Slate Gray #2F4F4F ΔE 0.046
- Dark Blue Green #005249 ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.057
Use #2B4438 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.