#275656
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.1% 0.051 195.4), rgb(39, 86, 86).
Aa
White text reads best on this color (8.22:1).
About this color
#275656 is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.051 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.022 away. White text reads best on it, at 8.22:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.55:1 |
| White text | 8.22:1 |
Values
| HEX | #275656 |
| RGB | rgb(39, 86, 86) |
| HSL | hsl(180, 38%, 25%) |
| OKLCH | oklch(42.1% 0.051 195.4) |
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 #275656 | 8.22:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #275656 | 2.55:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #275656 text on white | 8.22:1 | AAA | Lc 88.3 | Fine for body text |
| #275656 text on black | 2.55:1 | Fails | Lc -13.9 | 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 800.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E4ECEC
oklch(93.7% 0.009 197)
-
Step 200
200
#CDDDDC
oklch(88.5% 0.017 192.3)
-
Step 300
300
#ABC7C7
oklch(80.9% 0.03 196.6)
-
Step 400
400
#7EAAAA
oklch(70.6% 0.047 196.1)
-
Step 500
500
#5B9595
oklch(63% 0.061 195.7)
-
Step 600
600
#3F8080
oklch(55.7% 0.066 195.4)
-
Step 700
700
#306C6C
oklch(49.2% 0.062 195.3)
-
Step 800
800 (this color)
#275656
oklch(42.1% 0.051 195.4)
-
Step 900
900
#264848
oklch(37.6% 0.04 195.6)
-
Step 950
950
#172A2A
oklch(26.9% 0.025 195.8)
#275656 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) | #515256 | 0.054 |
| Deuteranopia (no green cones) | #494C56 | 0.050 |
| Tritanopia (no blue cones) | #065956 | 0.020 |
| Achromatopsia (no color) | #4F4F4F | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #275656
#275656
oklch(42.1% 0.051 195.4)
- #664244
#664244
oklch(42.1% 0.05 15.8)
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 #275656, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.022
- Deep Teal #00555A ΔE 0.023
- Dark Blue Green #005249 ΔE 0.036
- Petrol #005F6A ΔE 0.037
- Dark Teal #014D4E ΔE 0.042
- Dark Green Blue #1F6357 ΔE 0.042
- Charcoal #264653 ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.056
Use #275656 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.