#264240
Closest named color: Onyx (#343A40). oklch(35.6% 0.034 190), rgb(38, 66, 64).
Aa
White text reads best on this color (10.84:1).
About this color
#264240 is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.034 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.031 away. White text reads best on it, at 10.84:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Onyx (#343A40) |
| Black text | 1.93:1 |
| White text | 10.84:1 |
Values
| HEX | #264240 |
| RGB | rgb(38, 66, 64) |
| HSL | hsl(176, 27%, 20%) |
| OKLCH | oklch(35.6% 0.034 190) |
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 #264240 | 10.84:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #264240 | 1.93:1 | Fails | Lc 8.8 | Not readable |
| #264240 text on white | 10.84:1 | AAA | Lc 95.1 | Preferred for body text |
| #264240 text on black | 1.93:1 | Fails | Lc -7.6 | 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
#CFDCDB
oklch(88.4% 0.014 191.4)
-
Step 300
300
#AFC6C4
oklch(80.9% 0.025 190.3)
-
Step 400
400
#84A9A6
oklch(70.7% 0.041 190.1)
-
Step 500
500
#649490
oklch(63.1% 0.052 189.4)
-
Step 600
600
#497E7B
oklch(55.5% 0.057 191)
-
Step 700
700
#3A6B67
oklch(49.2% 0.054 188.8)
-
Step 800
800
#315754
oklch(42.7% 0.044 189.2)
-
Step 900
900 (this color)
#264240
oklch(35.6% 0.034 190)
-
Step 950
950
#1A2A29
oklch(27% 0.022 191)
#264240 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) | #3F3F40 | 0.036 |
| Deuteranopia (no green cones) | #3A3C40 | 0.033 |
| Tritanopia (no blue cones) | #1B4341 | 0.011 |
| Achromatopsia (no color) | #3D3D3D | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #264240
#264240
oklch(35.6% 0.034 190)
- #4C3538
#4C3538
oklch(35.6% 0.033 10.2)
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 #264240, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.031
- Charcoal Grey #3C4142 ΔE 0.032
- Charcoal #264653 ΔE 0.032
- Dark Blue Grey #1F3B4D ΔE 0.039
- Dark Teal #014D4E ΔE 0.040
- Midnight Green #073B4C ΔE 0.046
- Dark Grey Blue #29465B ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.047
Use #264240 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.