#428EA0
Closest named color: Teal Green (#0A9396). oklch(60.6% 0.079 215.5), rgb(66, 142, 160).
Aa
Black text reads best on this color (5.60:1).
About this color
#428EA0 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.079 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.036 away. Black text reads best on it, at 5.60:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 5.60:1 |
| White text | 3.74:1 |
Values
| HEX | #428EA0 |
| RGB | rgb(66, 142, 160) |
| HSL | hsl(191, 42%, 44%) |
| OKLCH | oklch(60.6% 0.079 215.5) |
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 #428EA0 | 3.74:1 | AA large text | Lc -70.3 | Content text, not long reading |
| Black text on #428EA0 | 5.60:1 | AA | Lc 39.3 | Non-text elements, placeholder text |
| #428EA0 text on white | 3.74:1 | AA large text | Lc 64.8 | Content text, not long reading |
| #428EA0 text on black | 5.60:1 | AA | Lc -36.9 | 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 500.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CADDE2
oklch(88.5% 0.022 215.3)
-
Step 300
300
#A5C7D1
oklch(80.8% 0.039 217.5)
-
Step 400
400
#73ABB9
oklch(70.7% 0.062 215.1)
-
Step 500
500 (this color)
#428EA0
oklch(60.6% 0.079 215.5)
-
Step 600
600
#278093
oklch(55.7% 0.086 215.2)
-
Step 700
700
#176C7D
oklch(49.1% 0.08 214.9)
-
Step 800
800
#175866
oklch(42.7% 0.067 215.5)
-
Step 900
900
#1C4853
oklch(37.6% 0.051 216.8)
-
Step 950
950
#122A31
oklch(26.9% 0.033 219.1)
#428EA0 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) | #818AA1 | 0.070 |
| Deuteranopia (no green cones) | #737FA0 | 0.065 |
| Tritanopia (no blue cones) | #009594 | 0.042 |
| Achromatopsia (no color) | #848484 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428EA0
#428EA0
oklch(60.6% 0.079 215.5)
- #AC7161
#AC7161
oklch(60.7% 0.079 35.9)
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 #428EA0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.036
- Teal Blue #01889F ΔE 0.037
- Blue NCS #118AB2 ΔE 0.041
- Dusty Blue #5A86AD ΔE 0.041
- Dusty Teal #4C9085 ΔE 0.044
- Off Blue #5684AE ΔE 0.045
- Sea #3C9992 ΔE 0.045
- Dark Cyan #008B8B ΔE 0.047
Use #428EA0 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.