#2B4847
Closest named color: Charcoal (#264653). oklch(37.8% 0.035 193), rgb(43, 72, 71).
Aa
White text reads best on this color (9.90:1).
About this color
#2B4847 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.035 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.024 away. White text reads best on it, at 9.90:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.12:1 |
| White text | 9.90:1 |
Values
| HEX | #2B4847 |
| RGB | rgb(43, 72, 71) |
| HSL | hsl(178, 25%, 23%) |
| OKLCH | oklch(37.8% 0.035 193) |
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 #2B4847 | 9.90:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #2B4847 | 2.12:1 | Fails | Lc 11.0 | Not readable |
| #2B4847 text on white | 9.90:1 | AAA | Lc 92.9 | Preferred for body text |
| #2B4847 text on black | 2.12:1 | Fails | Lc -9.5 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4EBEB
oklch(93.5% 0.007 197)
-
Step 200
200
#CFDCDC
oklch(88.5% 0.014 196.9)
-
Step 300
300
#AEC6C5
oklch(80.8% 0.026 193.6)
-
Step 400
400
#83A9A8
oklch(70.7% 0.041 194.2)
-
Step 500
500
#629492
oklch(63.1% 0.054 192.7)
-
Step 600
600
#487E7D
oklch(55.5% 0.058 194.1)
-
Step 700
700
#396B69
oklch(49.2% 0.054 192.2)
-
Step 800
800
#2F5756
oklch(42.7% 0.045 193.5)
-
Step 900
900 (this color)
#2B4847
oklch(37.8% 0.035 193)
-
Step 950
950
#192A29
oklch(27% 0.023 191.2)
#2B4847 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) | #454547 | 0.037 |
| Deuteranopia (no green cones) | #3F4147 | 0.034 |
| Tritanopia (no blue cones) | #204A48 | 0.012 |
| Achromatopsia (no color) | #434343 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4847
#2B4847
oklch(37.8% 0.035 193)
- #533A3D
#533A3D
oklch(37.8% 0.036 10.9)
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 #2B4847, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.024
- Dark Slate Gray #2F4F4F ΔE 0.025
- Charcoal Grey #3C4142 ΔE 0.029
- Dark Teal #014D4E ΔE 0.030
- Dark Grey Blue #29465B ΔE 0.038
- Dark Blue Green #005249 ΔE 0.040
- Onyx #343A40 ΔE 0.044
- Deep Teal #00555A ΔE 0.047
Use #2B4847 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.