#028CA9
Closest named color: Blue NCS (#118AB2). oklch(59.2% 0.107 219.4), rgb(2, 140, 169).
Aa
Black text reads best on this color (5.32:1).
About this color
#028CA9 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.107 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.017 away. Black text reads best on it, at 5.32:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.32:1 |
| White text | 3.94:1 |
Values
| HEX | #028CA9 |
| RGB | rgb(2, 140, 169) |
| HSL | hsl(190, 98%, 34%) |
| OKLCH | oklch(59.2% 0.107 219.4) |
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 #028CA9 | 3.94:1 | AA large text | Lc -71.7 | Content text, not long reading |
| Black text on #028CA9 | 5.32:1 | AA | Lc 37.9 | Non-text elements, placeholder text |
| #028CA9 text on white | 3.94:1 | AA large text | Lc 66.2 | Content text, not long reading |
| #028CA9 text on black | 5.32:1 | AA | Lc -35.5 | 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
#E0ECF0
oklch(93.5% 0.014 219.6)
-
Step 200
200
#C7DEE5
oklch(88.6% 0.026 218)
-
Step 300
300
#9FC9D6
oklch(81% 0.048 218.7)
-
Step 400
400
#66ACC1
oklch(70.6% 0.077 219.2)
-
Step 500
500
#3297B2
oklch(63% 0.099 219.5)
-
Step 600
600 (this color)
#028CA9
oklch(59.2% 0.107 219.4)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900
#0A4959
oklch(37.6% 0.064 220.2)
-
Step 950
950
#0A2B34
oklch(27% 0.041 219.4)
#028CA9 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) | #7A88AB | 0.089 |
| Deuteranopia (no green cones) | #677AA9 | 0.080 |
| Tritanopia (no blue cones) | #009595 | 0.047 |
| Achromatopsia (no color) | #808080 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #028CA9
#028CA9
oklch(59.2% 0.107 219.4)
- #B3664C
#B3664C
oklch(59.2% 0.107 39.3)
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 #028CA9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.017
- Teal Blue #01889F ΔE 0.017
- Teal Green #0A9396 ΔE 0.041
- Dark Cyan #008B8B ΔE 0.047
- Steel Blue #4682B4 ΔE 0.048
- Cool Blue #4984B8 ΔE 0.050
- Off Blue #5684AE ΔE 0.052
- Cerulean #457B9D ΔE 0.052
Use #028CA9 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.