#028F89
Closest named color: Dark Cyan (#008B8B). oklch(58.7% 0.101 189.6), rgb(2, 143, 137).
Aa
Black text reads best on this color (5.29:1).
About this color
#028F89 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.101 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.014 away. Black text reads best on it, at 5.29:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 5.29:1 |
| White text | 3.96:1 |
Values
| HEX | #028F89 |
| RGB | rgb(2, 143, 137) |
| HSL | hsl(177, 97%, 28%) |
| OKLCH | oklch(58.7% 0.101 189.6) |
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 #028F89 | 3.96:1 | AA large text | Lc -71.9 | Content text, not long reading |
| Black text on #028F89 | 5.29:1 | AA | Lc 37.6 | Non-text elements, placeholder text |
| #028F89 text on white | 3.96:1 | AA large text | Lc 66.4 | Content text, not long reading |
| #028F89 text on black | 5.29:1 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEC
oklch(93.7% 0.013 190.9)
-
Step 200
200
#C7DFDD
oklch(88.5% 0.026 190.6)
-
Step 300
300
#A0CBC7
oklch(81% 0.046 189.3)
-
Step 400
400
#68AFAA
oklch(70.6% 0.072 189.9)
-
Step 500
500
#359B95
oklch(63% 0.093 189.5)
-
Step 600
600 (this color)
#028F89
oklch(58.7% 0.101 189.6)
-
Step 700
700
#00706B
oklch(49.2% 0.085 189.4)
-
Step 800
800
#005C58
oklch(42.8% 0.074 189.6)
-
Step 900
900
#0C4C48
oklch(37.8% 0.061 188.5)
-
Step 950
950
#0B2C2A
oklch(26.9% 0.038 189.5)
#028F89 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) | #868789 | 0.107 |
| Deuteranopia (no green cones) | #767B8A | 0.100 |
| Tritanopia (no blue cones) | #00938D | 0.012 |
| Achromatopsia (no color) | #808080 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #028F89
#028F89
oklch(58.7% 0.101 189.6)
- #AF616F
#AF616F
oklch(58.6% 0.102 9.2)
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 #028F89, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.014
- Teal Green #0A9396 ΔE 0.021
- Blue Green #0F9B8E ΔE 0.036
- Dusty Teal #4C9085 ΔE 0.037
- Sea #3C9992 ΔE 0.042
- Teal #008080 ΔE 0.045
- Persian Green #2A9D8F ΔE 0.045
- Teal Blue #01889F ΔE 0.046
Use #028F89 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.