#278685
Closest named color: Dark Cyan (#008B8B). oklch(56.7% 0.085 194), rgb(39, 134, 133).
Aa
Black text reads best on this color (4.83:1).
About this color
#278685 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.085 and its hue 194°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.016 away. Black text reads best on it, at 4.83:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 4.83:1 |
| White text | 4.34:1 |
Values
| HEX | #278685 |
| RGB | rgb(39, 134, 133) |
| HSL | hsl(179, 55%, 34%) |
| OKLCH | oklch(56.7% 0.085 194) |
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 #278685 | 4.34:1 | AA large text | Lc -75.2 | Fine for body text |
| Black text on #278685 | 4.83:1 | AA | Lc 34.3 | Non-text elements, placeholder text |
| #278685 text on white | 4.34:1 | AA large text | Lc 69.8 | Content text, not long reading |
| #278685 text on black | 4.83:1 | AA | Lc -31.9 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CADEDD
oklch(88.5% 0.021 193.1)
-
Step 300
300
#A5C9C8
oklch(80.9% 0.038 194.3)
-
Step 400
400
#72ADAC
oklch(70.7% 0.061 194.5)
-
Step 500
500
#489997
oklch(63.2% 0.079 193.2)
-
Step 600
600 (this color)
#278685
oklch(56.7% 0.085 194)
-
Step 700
700
#126F6E
oklch(49.2% 0.08 193.7)
-
Step 800
800
#155A59
oklch(42.7% 0.066 193.5)
-
Step 900
900
#1A4A49
oklch(37.6% 0.051 193.3)
-
Step 950
950
#112B2B
oklch(26.9% 0.032 195.4)
#278685 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) | #7D7F85 | 0.089 |
| Deuteranopia (no green cones) | #6F7586 | 0.083 |
| Tritanopia (no blue cones) | #008A85 | 0.015 |
| Achromatopsia (no color) | #797979 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #278685
#278685
oklch(56.7% 0.085 194)
- #A26167
#A26167
oklch(56.7% 0.085 14.2)
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 #278685, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.016
- Teal #008080 ΔE 0.025
- Teal Green #0A9396 ΔE 0.039
- Teal Blue #01889F ΔE 0.039
- Bluegreen #017A79 ΔE 0.042
- Dusty Teal #4C9085 ΔE 0.044
- Deep Aqua #08787F ΔE 0.046
- Ocean #017B92 ΔE 0.047
Use #278685 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.