#234041
Closest named color: Onyx (#343A40). oklch(34.9% 0.035 198.5), rgb(35, 64, 65).
Aa
White text reads best on this color (11.16:1).
About this color
#234041 is a dark, muted teal or cyan. In OKLCH its lightness is 35%, its chroma 0.035 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.029 away. White text reads best on it, at 11.16:1.
| Hue family | Teals and cyans |
| Lightness | dark (35%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Onyx (#343A40) |
| Black text | 1.88:1 |
| White text | 11.16:1 |
Values
| HEX | #234041 |
| RGB | rgb(35, 64, 65) |
| HSL | hsl(182, 30%, 20%) |
| OKLCH | oklch(34.9% 0.035 198.5) |
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 #234041 | 11.16:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #234041 | 1.88:1 | Fails | Lc 8.2 | Not readable |
| #234041 text on white | 11.16:1 | AAA | Lc 95.7 | Preferred for body text |
| #234041 text on black | 1.88:1 | Fails | Lc 0.0 | 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
#E4EBEC
oklch(93.5% 0.008 207.1)
-
Step 200
200
#CFDCDD
oklch(88.5% 0.014 202.4)
-
Step 300
300
#AEC6C7
oklch(80.9% 0.026 199.7)
-
Step 400
400
#82A9AA
oklch(70.7% 0.042 198.2)
-
Step 500
500
#629495
oklch(63.2% 0.054 197.5)
-
Step 600
600
#477E80
oklch(55.6% 0.058 198.6)
-
Step 700
700
#386A6C
oklch(49% 0.054 198.9)
-
Step 800
800
#2F5758
oklch(42.8% 0.045 197.7)
-
Step 900
900 (this color)
#234041
oklch(34.9% 0.035 198.5)
-
Step 950
950
#192A2A
oklch(27% 0.023 195.9)
#234041 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) | #3C3E41 | 0.035 |
| Deuteranopia (no green cones) | #373A41 | 0.033 |
| Tritanopia (no blue cones) | #154240 | 0.015 |
| Achromatopsia (no color) | #3B3B3B | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #234041
#234041
oklch(34.9% 0.035 198.5)
- #4B3333
#4B3333
oklch(34.9% 0.035 19)
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 #234041, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.029
- Dark Blue Grey #1F3B4D ΔE 0.032
- Charcoal #264653 ΔE 0.033
- Charcoal Grey #3C4142 ΔE 0.036
- Midnight Green #073B4C ΔE 0.038
- Dark Teal #014D4E ΔE 0.044
- Dark Grey Blue #29465B ΔE 0.047
- Gunmetal #293241 ΔE 0.048
Use #234041 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.