#2A4049
Closest named color: Charcoal (#264653). oklch(35.7% 0.032 225.4), rgb(42, 64, 73).
Aa
White text reads best on this color (10.89:1).
About this color
#2A4049 is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.032 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.022 away. White text reads best on it, at 10.89:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.92:1 |
| White text | 10.89:1 |
Values
| HEX | #2A4049 |
| RGB | rgb(42, 64, 73) |
| HSL | hsl(197, 27%, 23%) |
| OKLCH | oklch(35.7% 0.032 225.4) |
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 #2A4049 | 10.89:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #2A4049 | 1.92:1 | Fails | Lc 8.7 | Not readable |
| #2A4049 text on white | 10.89:1 | AAA | Lc 95.2 | Preferred for body text |
| #2A4049 text on black | 1.92:1 | Fails | Lc -7.5 | 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
#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
#88A6B3
oklch(70.7% 0.038 226)
-
Step 500
500
#6A90A0
oklch(63.1% 0.048 225.8)
-
Step 600
600
#517A8B
oklch(55.6% 0.053 225.9)
-
Step 700
700
#416776
oklch(49.1% 0.049 224.9)
-
Step 800
800
#365460
oklch(42.7% 0.041 225.1)
-
Step 900
900 (this color)
#2A4049
oklch(35.7% 0.032 225.4)
-
Step 950
950
#1C292E
oklch(27.1% 0.02 223.6)
#2A4049 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) | #3B3F49 | 0.025 |
| Deuteranopia (no green cones) | #363B49 | 0.023 |
| Tritanopia (no blue cones) | #1E4343 | 0.022 |
| Achromatopsia (no color) | #3D3D3D | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A4049
#2A4049
oklch(35.7% 0.032 225.4)
- #4B372F
#4B372F
oklch(35.7% 0.032 42.8)
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 #2A4049, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.022
- Onyx #343A40 ΔE 0.023
- Dark Blue Grey #1F3B4D ΔE 0.025
- Charcoal Grey #3C4142 ΔE 0.029
- Dark Grey Blue #29465B ΔE 0.032
- Midnight Green #073B4C ΔE 0.039
- Gunmetal #293241 ΔE 0.046
- Dark Teal #014D4E ΔE 0.047
Use #2A4049 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.