#028F87
Closest named color: Dark Cyan (#008B8B). oklch(58.6% 0.102 187.9), rgb(2, 143, 135).
Aa
Black text reads best on this color (5.28:1).
About this color
#028F87 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.102 and its hue 188°. 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 5.28:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 5.28:1 |
| White text | 3.97:1 |
Values
| HEX | #028F87 |
| RGB | rgb(2, 143, 135) |
| HSL | hsl(177, 97%, 28%) |
| OKLCH | oklch(58.6% 0.102 187.9) |
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 #028F87 | 3.97:1 | AA large text | Lc -72.0 | Content text, not long reading |
| Black text on #028F87 | 5.28:1 | AA | Lc 37.6 | Non-text elements, placeholder text |
| #028F87 text on white | 3.97:1 | AA large text | Lc 66.5 | Content text, not long reading |
| #028F87 text on black | 5.28:1 | AA | Lc -35.1 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEB
oklch(93.7% 0.013 185.1)
-
Step 200
200
#C7DFDC
oklch(88.5% 0.026 187.6)
-
Step 300
300
#A0CBC6
oklch(81% 0.046 187.5)
-
Step 400
400
#68B0A9
oklch(70.8% 0.073 187.7)
-
Step 500
500
#359C94
oklch(63.2% 0.094 187.7)
-
Step 600
600 (this color)
#028F87
oklch(58.6% 0.102 187.9)
-
Step 700
700
#00706A
oklch(49.1% 0.085 188.3)
-
Step 800
800
#005C56
oklch(42.8% 0.075 187.1)
-
Step 900
900
#0C4C47
oklch(37.7% 0.061 186.9)
-
Step 950
950
#0B2C2A
oklch(26.9% 0.038 189.5)
#028F87 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) | #868687 | 0.108 |
| Deuteranopia (no green cones) | #767B88 | 0.101 |
| Tritanopia (no blue cones) | #00938C | 0.012 |
| Achromatopsia (no color) | #808080 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #028F87
#028F87
oklch(58.6% 0.102 187.9)
- #AF6171
#AF6171
oklch(58.6% 0.102 7.6)
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 #028F87, 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 Green #0A9396 ΔE 0.024
- Blue Green #0F9B8E ΔE 0.036
- Dusty Teal #4C9085 ΔE 0.037
- Sea #3C9992 ΔE 0.043
- Teal #008080 ΔE 0.045
- Persian Green #2A9D8F ΔE 0.045
- Teal Blue #01889F ΔE 0.049
Use #028F87 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.