#2B474B
Closest named color: Charcoal (#264653). oklch(37.7% 0.034 207.2), rgb(43, 71, 75).
Aa
White text reads best on this color (9.97:1).
About this color
#2B474B is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.034 and its hue 207°. 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 9.97:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.10:1 |
| White text | 9.97:1 |
Values
| HEX | #2B474B |
| RGB | rgb(43, 71, 75) |
| HSL | hsl(188, 27%, 23%) |
| OKLCH | oklch(37.7% 0.034 207.2) |
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 #2B474B | 9.97:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #2B474B | 2.10:1 | Fails | Lc 10.8 | Not readable |
| #2B474B text on white | 9.97:1 | AAA | Lc 93.1 | Preferred for body text |
| #2B474B text on black | 2.10:1 | Fails | Lc -9.4 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBEC
oklch(93.5% 0.008 207.1)
-
Step 200
200
#CFDCDE
oklch(88.5% 0.014 207.9)
-
Step 300
300
#AEC6C9
oklch(80.9% 0.026 205.8)
-
Step 400
400
#83A8AE
oklch(70.6% 0.041 208.5)
-
Step 500
500
#63939A
oklch(63.2% 0.053 207.4)
-
Step 600
600
#487D84
oklch(55.6% 0.057 206.5)
-
Step 700
700
#396970
oklch(49% 0.053 207.7)
-
Step 800
800
#30565B
oklch(42.7% 0.044 206.5)
-
Step 900
900 (this color)
#2B474B
oklch(37.7% 0.034 207.2)
-
Step 950
950
#1A2A2C
oklch(27.2% 0.022 205.8)
#2B474B 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) | #43454B | 0.034 |
| Deuteranopia (no green cones) | #3D414B | 0.030 |
| Tritanopia (no blue cones) | #1E4948 | 0.017 |
| Achromatopsia (no color) | #424242 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B474B
#2B474B
oklch(37.7% 0.034 207.2)
- #533B38
#533B38
oklch(37.8% 0.035 26.9)
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 #2B474B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.016
- Dark Slate Gray #2F4F4F ΔE 0.027
- Charcoal Grey #3C4142 ΔE 0.028
- Dark Grey Blue #29465B ΔE 0.029
- Dark Teal #014D4E ΔE 0.032
- Onyx #343A40 ΔE 0.041
- Dark Blue Green #005249 ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.046
Use #2B474B 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.