#2B4449
Closest named color: Charcoal (#264653). oklch(36.8% 0.032 211.5), rgb(43, 68, 73).
Aa
White text reads best on this color (10.36:1).
About this color
#2B4449 is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.032 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.017 away. White text reads best on it, at 10.36:1.
| Hue family | Teals and cyans |
| Lightness | dark (37%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.02:1 |
| White text | 10.36:1 |
Values
| HEX | #2B4449 |
| RGB | rgb(43, 68, 73) |
| HSL | hsl(190, 26%, 23%) |
| OKLCH | oklch(36.8% 0.032 211.5) |
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 #2B4449 | 10.36:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #2B4449 | 2.02:1 | Fails | Lc 9.9 | Not readable |
| #2B4449 text on white | 10.36:1 | AAA | Lc 94.0 | Preferred for body text |
| #2B4449 text on black | 2.02:1 | Fails | Lc -8.5 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#D0DCDE
oklch(88.6% 0.013 208.8)
-
Step 300
300
#B0C5C9
oklch(80.9% 0.024 210.4)
-
Step 400
400
#86A7AE
oklch(70.6% 0.038 212)
-
Step 500
500
#67929B
oklch(63.2% 0.049 212.1)
-
Step 600
600
#4D7C85
oklch(55.6% 0.053 211)
-
Step 700
700
#3E6871
oklch(49% 0.049 212.8)
-
Step 800
800
#33555C
oklch(42.6% 0.041 212.1)
-
Step 900
900 (this color)
#2B4449
oklch(36.8% 0.032 211.5)
-
Step 950
950
#1B292C
oklch(27% 0.02 212.4)
#2B4449 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) | #404249 | 0.030 |
| Deuteranopia (no green cones) | #3B3E49 | 0.029 |
| Tritanopia (no blue cones) | #1F4645 | 0.017 |
| Achromatopsia (no color) | #404040 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4449
#2B4449
oklch(36.8% 0.032 211.5)
- #4F3935
#4F3935
oklch(36.8% 0.032 30.4)
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 #2B4449, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.017
- Charcoal Grey #3C4142 ΔE 0.025
- Dark Grey Blue #29465B ΔE 0.030
- Onyx #343A40 ΔE 0.032
- Dark Slate Gray #2F4F4F ΔE 0.036
- Dark Teal #014D4E ΔE 0.037
- Dark Blue Grey #1F3B4D ΔE 0.038
- Midnight Green #073B4C ΔE 0.049
Use #2B4449 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.