#028BA9
Closest named color: Blue NCS (#118AB2). oklch(58.9% 0.107 220.2), rgb(2, 139, 169).
Aa
Black text reads best on this color (5.26:1).
About this color
#028BA9 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.107 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.016 away. Black text reads best on it, at 5.26:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.26:1 |
| White text | 3.98:1 |
Values
| HEX | #028BA9 |
| RGB | rgb(2, 139, 169) |
| HSL | hsl(191, 98%, 34%) |
| OKLCH | oklch(58.9% 0.107 220.2) |
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 #028BA9 | 3.98:1 | AA large text | Lc -72.1 | Content text, not long reading |
| Black text on #028BA9 | 5.26:1 | AA | Lc 37.5 | Non-text elements, placeholder text |
| #028BA9 text on white | 3.98:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #028BA9 text on black | 5.26:1 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E0ECF0
oklch(93.5% 0.014 219.6)
-
Step 200
200
#C7DEE6
oklch(88.6% 0.027 220.7)
-
Step 300
300
#9FC8D6
oklch(80.8% 0.048 220.7)
-
Step 400
400
#67ACC2
oklch(70.7% 0.077 220.4)
-
Step 500
500
#3397B3
oklch(63.1% 0.099 220.4)
-
Step 600
600 (this color)
#028BA9
oklch(58.9% 0.107 220.2)
-
Step 700
700
#006C84
oklch(49.2% 0.09 220.2)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900
#0B4959
oklch(37.7% 0.064 220.3)
-
Step 950
950
#0A2B34
oklch(27% 0.041 219.4)
#028BA9 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) | #7987AB | 0.089 |
| Deuteranopia (no green cones) | #6679A9 | 0.079 |
| Tritanopia (no blue cones) | #009595 | 0.050 |
| Achromatopsia (no color) | #7F7F7F | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #028BA9
#028BA9
oklch(58.9% 0.107 220.2)
- #B2654A
#B2654A
oklch(58.8% 0.107 39.9)
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 #028BA9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.016
- Teal Blue #01889F ΔE 0.016
- Teal Green #0A9396 ΔE 0.044
- Steel Blue #4682B4 ΔE 0.046
- Dark Cyan #008B8B ΔE 0.048
- Cool Blue #4984B8 ΔE 0.049
- Cerulean #457B9D ΔE 0.050
- Off Blue #5684AE ΔE 0.051
Use #028BA9 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.