#2B424B
Closest named color: Charcoal (#264653). oklch(36.4% 0.033 224.4), rgb(43, 66, 75).
Aa
White text reads best on this color (10.58:1).
About this color
#2B424B is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.033 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.016 away. White text reads best on it, at 10.58:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.98:1 |
| White text | 10.58:1 |
Values
| HEX | #2B424B |
| RGB | rgb(43, 66, 75) |
| HSL | hsl(197, 27%, 23%) |
| OKLCH | oklch(36.4% 0.033 224.4) |
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 #2B424B | 10.58:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #2B424B | 1.98:1 | Fails | Lc 9.4 | Not readable |
| #2B424B text on white | 10.58:1 | AAA | Lc 94.5 | Preferred for body text |
| #2B424B 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#D0DBE0
oklch(88.5% 0.014 226.6)
-
Step 300
300
#B1C4CC
oklch(80.8% 0.024 224.9)
-
Step 400
400
#87A6B3
oklch(70.6% 0.039 225.3)
-
Step 500
500
#6990A0
oklch(63% 0.049 225.2)
-
Step 600
600
#4F7A8B
oklch(55.5% 0.054 224.9)
-
Step 700
700
#406776
oklch(49.1% 0.05 224.4)
-
Step 800
800
#355460
oklch(42.7% 0.042 224.4)
-
Step 900
900 (this color)
#2B424B
oklch(36.4% 0.033 224.4)
-
Step 950
950
#1B292E
oklch(27% 0.021 222)
#2B424B 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) | #3D414B | 0.026 |
| Deuteranopia (no green cones) | #383D4B | 0.023 |
| Tritanopia (no blue cones) | #1F4545 | 0.022 |
| Achromatopsia (no color) | #3F3F3F | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B424B
#2B424B
oklch(36.4% 0.033 224.4)
- #4D3930
#4D3930
oklch(36.4% 0.032 45.4)
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 #2B424B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.016
- Charcoal Grey #3C4142 ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.027
- Onyx #343A40 ΔE 0.028
- Dark Blue Grey #1F3B4D ΔE 0.030
- Dark Teal #014D4E ΔE 0.043
- Dark Slate Gray #2F4F4F ΔE 0.043
- Midnight Green #073B4C ΔE 0.044
Use #2B424B 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.