#028B9C
Closest named color: Teal Blue (#01889F). oklch(58.3% 0.101 209.9), rgb(2, 139, 156).
Aa
Black text reads best on this color (5.17:1).
About this color
#028B9C is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.101 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.011 away. Black text reads best on it, at 5.17:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.17:1 |
| White text | 4.05:1 |
Values
| HEX | #028B9C |
| RGB | rgb(2, 139, 156) |
| HSL | hsl(187, 97%, 31%) |
| OKLCH | oklch(58.3% 0.101 209.9) |
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 #028B9C | 4.05:1 | AA large text | Lc -72.7 | Content text, not long reading |
| Black text on #028B9C | 5.17:1 | AA | Lc 36.9 | Non-text elements, placeholder text |
| #028B9C text on white | 4.05:1 | AA large text | Lc 67.2 | Content text, not long reading |
| #028B9C text on black | 5.17:1 | AA | Lc -34.5 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0ECEF
oklch(93.5% 0.013 214.4)
-
Step 200
200
#C7DEE2
oklch(88.5% 0.025 209.3)
-
Step 300
300
#9FC9D1
oklch(80.8% 0.046 210.5)
-
Step 400
400
#68ADB9
oklch(70.6% 0.072 209.8)
-
Step 500
500
#3599A8
oklch(63.2% 0.093 209.2)
-
Step 600
600 (this color)
#028B9C
oklch(58.3% 0.101 209.9)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900
#0C4A53
oklch(37.7% 0.06 209.8)
-
Step 950
950
#0B2B31
oklch(26.9% 0.038 212.2)
#028B9C 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) | #7D859D | 0.095 |
| Deuteranopia (no green cones) | #6B799C | 0.085 |
| Tritanopia (no blue cones) | #009290 | 0.033 |
| Achromatopsia (no color) | #7E7E7E | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #028B9C
#028B9C
oklch(58.3% 0.101 209.9)
- #AF6357
#AF6357
oklch(58.3% 0.101 29.9)
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 #028B9C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.011
- Dark Cyan #008B8B ΔE 0.027
- Teal Green #0A9396 ΔE 0.029
- Blue NCS #118AB2 ΔE 0.036
- Ocean #017B92 ΔE 0.048
- Teal #008080 ΔE 0.048
- Cerulean #457B9D ΔE 0.054
- Dusty Teal #4C9085 ΔE 0.054
Use #028B9C 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.