#28585A
Closest named color: Deep Teal (#00555A). oklch(42.8% 0.052 199), rgb(40, 88, 90).
Aa
White text reads best on this color (7.97:1).
About this color
#28585A is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.052 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.026 away. White text reads best on it, at 7.97:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.63:1 |
| White text | 7.97:1 |
Values
| HEX | #28585A |
| RGB | rgb(40, 88, 90) |
| HSL | hsl(182, 38%, 25%) |
| OKLCH | oklch(42.8% 0.052 199) |
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 #28585A | 7.97:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #28585A | 2.63:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #28585A text on white | 7.97:1 | AAA | Lc 87.5 | Fine for body text |
| #28585A text on black | 2.63:1 | Fails | Lc -14.6 | Not readable |
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 800.
-
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
#ABC7C8
oklch(80.9% 0.03 199.2)
-
Step 400
400
#7DAAAC
oklch(70.6% 0.048 199.6)
-
Step 500
500
#5A9598
oklch(63.1% 0.062 199.9)
-
Step 600
600
#3D7F82
oklch(55.5% 0.067 199.4)
-
Step 700
700
#2E6C6E
oklch(49.2% 0.063 198.2)
-
Step 800
800 (this color)
#28585A
oklch(42.8% 0.052 199)
-
Step 900
900
#25484A
oklch(37.6% 0.041 200.4)
-
Step 950
950
#172A2B
oklch(26.9% 0.025 200)
#28585A 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) | #52545A | 0.053 |
| Deuteranopia (no green cones) | #4A4E5A | 0.050 |
| Tritanopia (no blue cones) | #035B58 | 0.022 |
| Achromatopsia (no color) | #515151 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28585A
#28585A
oklch(42.8% 0.052 199)
- #694444
#694444
oklch(42.9% 0.051 19.4)
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 #28585A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.026
- Dark Slate Gray #2F4F4F ΔE 0.029
- Petrol #005F6A ΔE 0.031
- Dark Green Blue #1F6357 ΔE 0.038
- Dark Blue Green #005249 ΔE 0.043
- Dark Teal #014D4E ΔE 0.049
- Dark Aqua #05696B ΔE 0.053
- Charcoal #264653 ΔE 0.058
Use #28585A 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.