#028AB3
Closest named color: Blue NCS (#118AB2). oklch(59.2% 0.115 227.9), rgb(2, 138, 179).
Aa
Black text reads best on this color (5.28:1).
About this color
#028AB3 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.115 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.003 away. Black text reads best on it, at 5.28:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.28:1 |
| White text | 3.97:1 |
Values
| HEX | #028AB3 |
| RGB | rgb(2, 138, 179) |
| HSL | hsl(194, 98%, 35%) |
| OKLCH | oklch(59.2% 0.115 227.9) |
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 #028AB3 | 3.97:1 | AA large text | Lc -71.9 | Content text, not long reading |
| Black text on #028AB3 | 5.28:1 | AA | Lc 37.6 | Non-text elements, placeholder text |
| #028AB3 text on white | 3.97:1 | AA large text | Lc 66.4 | Content text, not long reading |
| #028AB3 text on black | 5.28:1 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF2
oklch(93.6% 0.015 229)
-
Step 200
200
#C6DDE8
oklch(88.4% 0.029 228.1)
-
Step 300
300
#9EC8DB
oklch(80.9% 0.052 227.3)
-
Step 400
400
#66ABC9
oklch(70.7% 0.082 227.8)
-
Step 500
500
#3295BB
oklch(63% 0.106 228)
-
Step 600
600 (this color)
#028AB3
oklch(59.2% 0.115 227.9)
-
Step 700
700
#006A8B
oklch(49% 0.096 228.3)
-
Step 800
800
#005773
oklch(42.7% 0.084 228.5)
-
Step 900
900
#0A485E
oklch(37.6% 0.069 228.1)
-
Step 950
950
#0A2A37
oklch(26.9% 0.044 228.8)
#028AB3 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) | #7488B5 | 0.082 |
| Deuteranopia (no green cones) | #6079B2 | 0.071 |
| Tritanopia (no blue cones) | #009698 | 0.063 |
| Achromatopsia (no color) | #808080 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #028AB3
#028AB3
oklch(59.2% 0.115 227.9)
- #B4663C
#B4663C
oklch(59.1% 0.115 47.7)
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 #028AB3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.003
- Teal Blue #01889F ΔE 0.031
- Steel Blue #4682B4 ΔE 0.037
- Cool Blue #4984B8 ΔE 0.039
- Water Blue #0E87CC ΔE 0.042
- Nice Blue #107AB0 ΔE 0.046
- Off Blue #5684AE ΔE 0.047
- Dusty Blue #5A86AD ΔE 0.050
Use #028AB3 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.