#278D95
Closest named color: Teal Green (#0A9396). oklch(59.1% 0.09 202.8), rgb(39, 141, 149).
Aa
Black text reads best on this color (5.33:1).
About this color
#278D95 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.090 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.018 away. Black text reads best on it, at 5.33:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 5.33:1 |
| White text | 3.93:1 |
Values
| HEX | #278D95 |
| RGB | rgb(39, 141, 149) |
| HSL | hsl(184, 59%, 37%) |
| OKLCH | oklch(59.1% 0.09 202.8) |
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 #278D95 | 3.93:1 | AA large text | Lc -71.9 | Content text, not long reading |
| Black text on #278D95 | 5.33:1 | AA | Lc 37.6 | Non-text elements, placeholder text |
| #278D95 text on white | 3.93:1 | AA large text | Lc 66.4 | Content text, not long reading |
| #278D95 text on black | 5.33:1 | AA | Lc -35.2 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECED
oklch(93.5% 0.012 203.5)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A3C9CC
oklch(80.9% 0.041 202.3)
-
Step 400
400
#6EADB2
oklch(70.7% 0.065 202.2)
-
Step 500
500
#42989F
oklch(63% 0.083 202.6)
-
Step 600
600 (this color)
#278D95
oklch(59.1% 0.09 202.8)
-
Step 700
700
#006E76
oklch(49.1% 0.084 203.6)
-
Step 800
800
#0B5A60
oklch(42.7% 0.069 203.1)
-
Step 900
900
#164A4E
oklch(37.7% 0.054 202.4)
-
Step 950
950
#0F2B2E
oklch(26.9% 0.034 204.8)
#278D95 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) | #828796 | 0.091 |
| Deuteranopia (no green cones) | #727B95 | 0.084 |
| Tritanopia (no blue cones) | #00938F | 0.025 |
| Achromatopsia (no color) | #808080 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #278D95
#278D95
oklch(59.1% 0.09 202.8)
- #AD6764
#AD6764
oklch(59.1% 0.091 22.8)
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 #278D95, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.018
- Dark Cyan #008B8B ΔE 0.021
- Teal Blue #01889F ΔE 0.027
- Dusty Teal #4C9085 ΔE 0.037
- Sea #3C9992 ΔE 0.042
- Blue Green #0F9B8E ΔE 0.047
- Blue NCS #118AB2 ΔE 0.049
- Teal #008080 ΔE 0.049
Use #278D95 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.