#428585
Closest named color: Dark Cyan (#008B8B). oklch(57.3% 0.068 195.4), rgb(66, 133, 133).
Aa
Black text reads best on this color (4.92:1).
About this color
#428585 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 57%, its chroma 0.068 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.030 away. Black text reads best on it, at 4.92:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 4.92:1 |
| White text | 4.26:1 |
Values
| HEX | #428585 |
| RGB | rgb(66, 133, 133) |
| HSL | hsl(180, 34%, 39%) |
| OKLCH | oklch(57.3% 0.068 195.4) |
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 #428585 | 4.26:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #428585 | 4.92:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #428585 text on white | 4.26:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #428585 text on black | 4.92:1 | AA | Lc -32.4 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CDDDDD
oklch(88.6% 0.017 196.8)
-
Step 300
300
#ABC7C7
oklch(80.9% 0.03 196.6)
-
Step 400
400
#7DABAA
oklch(70.8% 0.049 194.4)
-
Step 500
500
#599695
oklch(63.2% 0.063 194.3)
-
Step 600
600 (this color)
#428585
oklch(57.3% 0.068 195.4)
-
Step 700
700
#2E6C6C
oklch(49.1% 0.063 195.3)
-
Step 800
800
#285858
oklch(42.7% 0.052 195.4)
-
Step 900
900
#254848
oklch(37.5% 0.041 195.6)
-
Step 950
950
#172A2A
oklch(26.9% 0.025 195.8)
#428585 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) | #7E7F85 | 0.072 |
| Deuteranopia (no green cones) | #727786 | 0.066 |
| Tritanopia (no blue cones) | #178985 | 0.026 |
| Achromatopsia (no color) | #7A7A7A | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428585
#428585
oklch(57.3% 0.068 195.4)
- #9C686B
#9C686B
oklch(57.3% 0.067 15.6)
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 #428585, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.030
- Dusty Teal #4C9085 ΔE 0.036
- Teal #008080 ΔE 0.039
- Teal Green #0A9396 ΔE 0.044
- Teal Blue #01889F ΔE 0.044
- Grey Blue #647D8E ΔE 0.048
- Battleship Grey #6B7C85 ΔE 0.050
- Steel Grey #6F828A ΔE 0.052
Use #428585 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.