#274242
Closest named color: Charcoal (#264653). oklch(35.8% 0.033 195.8), rgb(39, 66, 66).
Aa
White text reads best on this color (10.80:1).
About this color
#274242 is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.033 and its hue 196°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.029 away. White text reads best on it, at 10.80:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.94:1 |
| White text | 10.80:1 |
Values
| HEX | #274242 |
| RGB | rgb(39, 66, 66) |
| HSL | hsl(180, 26%, 21%) |
| OKLCH | oklch(35.8% 0.033 195.8) |
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 #274242 | 10.80:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #274242 | 1.94:1 | Fails | Lc 8.9 | Not readable |
| #274242 text on white | 10.80:1 | AAA | Lc 95.0 | Preferred for body text |
| #274242 text on black | 1.94:1 | Fails | Lc -7.7 | 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
#E5EBEB
oklch(93.6% 0.006 197)
-
Step 200
200
#CFDCDC
oklch(88.5% 0.014 196.9)
-
Step 300
300
#AFC6C6
oklch(80.9% 0.025 196.7)
-
Step 400
400
#84A9A8
oklch(70.7% 0.04 194.2)
-
Step 500
500
#659393
oklch(63% 0.05 196)
-
Step 600
600
#4B7E7E
oklch(55.7% 0.055 195.7)
-
Step 700
700
#3B6A6A
oklch(49.1% 0.051 195.6)
-
Step 800
800
#325656
oklch(42.6% 0.042 195.7)
-
Step 900
900 (this color)
#274242
oklch(35.8% 0.033 195.8)
-
Step 950
950
#1A2A2A
oklch(27.1% 0.021 196)
#274242 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 | 0.035 |
| Deuteranopia (no green cones) | #3A3C42 | 0.032 |
| Tritanopia (no blue cones) | #1C4442 | 0.013 |
| Achromatopsia (no color) | #3D3D3D | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #274242
#274242
oklch(35.8% 0.033 195.8)
- #4C3637
#4C3637
oklch(35.8% 0.032 15.7)
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 #274242, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.029
- Charcoal Grey #3C4142 ΔE 0.030
- Onyx #343A40 ΔE 0.030
- Dark Blue Grey #1F3B4D ΔE 0.037
- Dark Teal #014D4E ΔE 0.039
- Dark Grey Blue #29465B ΔE 0.043
- Midnight Green #073B4C ΔE 0.045
- Dark Slate Gray #2F4F4F ΔE 0.046
Use #274242 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.