#234342
Closest named color: Charcoal (#264653). oklch(35.8% 0.038 193), rgb(35, 67, 66).
Aa
White text reads best on this color (10.75:1).
About this color
#234342 is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.038 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.030 away. White text reads best on it, at 10.75:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.95:1 |
| White text | 10.75:1 |
Values
| HEX | #234342 |
| RGB | rgb(35, 67, 66) |
| HSL | hsl(178, 31%, 20%) |
| OKLCH | oklch(35.8% 0.038 193) |
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 #234342 | 10.75:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #234342 | 1.95:1 | Fails | Lc 9.1 | Not readable |
| #234342 text on white | 10.75:1 | AAA | Lc 94.8 | Preferred for body text |
| #234342 text on black | 1.95:1 | Fails | Lc -7.8 | 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
#E4ECEB
oklch(93.7% 0.009 188.1)
-
Step 200
200
#CEDDDC
oklch(88.6% 0.016 192)
-
Step 300
300
#ACC7C5
oklch(80.9% 0.029 191.1)
-
Step 400
400
#80AAA8
oklch(70.7% 0.045 192.5)
-
Step 500
500
#5E9593
oklch(63.1% 0.058 192.8)
-
Step 600
600
#437F7D
oklch(55.6% 0.063 192.7)
-
Step 700
700
#346B6A
oklch(49% 0.058 193.9)
-
Step 800
800
#2C5856
oklch(42.8% 0.049 191.6)
-
Step 900
900 (this color)
#234342
oklch(35.8% 0.038 193)
-
Step 950
950
#182A2A
oklch(26.9% 0.024 195.8)
#234342 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) | #3F4042 | 0.039 |
| Deuteranopia (no green cones) | #3A3C42 | 0.037 |
| Tritanopia (no blue cones) | #144543 | 0.014 |
| Achromatopsia (no color) | #3E3E3E | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #234342
#234342
oklch(35.8% 0.038 193)
- #4F3437
#4F3437
oklch(35.8% 0.039 11.9)
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 #234342, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.030
- Charcoal Grey #3C4142 ΔE 0.034
- Onyx #343A40 ΔE 0.035
- Dark Teal #014D4E ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.039
- Dark Grey Blue #29465B ΔE 0.044
- Midnight Green #073B4C ΔE 0.044
- Dark Slate Gray #2F4F4F ΔE 0.045
Use #234342 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.