#28646D
Closest named color: Dark Aqua (#05696B). oklch(46.8% 0.063 208.7), rgb(40, 100, 109).
Aa
White text reads best on this color (6.70:1).
About this color
#28646D is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.063 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.022 away. White text reads best on it, at 6.70:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.13:1 |
| White text | 6.70:1 |
Values
| HEX | #28646D |
| RGB | rgb(40, 100, 109) |
| HSL | hsl(188, 46%, 29%) |
| OKLCH | oklch(46.8% 0.063 208.7) |
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 #28646D | 6.70:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #28646D | 3.13:1 | AA large text | Lc 21.2 | Dividers and decoration only |
| #28646D text on white | 6.70:1 | AA | Lc 82.9 | Fine for body text |
| #28646D text on black | 3.13:1 | AA large text | Lc -19.1 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E4ECED
oklch(93.7% 0.009 205.9)
-
Step 200
200
#CDDCDF
oklch(88.4% 0.017 211)
-
Step 300
300
#ABC6CB
oklch(80.8% 0.03 210.1)
-
Step 400
400
#7DA9B1
oklch(70.6% 0.049 210)
-
Step 500
500
#5A949E
oklch(63.1% 0.062 209.6)
-
Step 600
600
#3E7E88
oklch(55.5% 0.067 208.8)
-
Step 700
700 (this color)
#28646D
oklch(46.8% 0.063 208.7)
-
Step 800
800
#28575E
oklch(42.7% 0.052 208.2)
-
Step 900
900
#26484D
oklch(37.8% 0.04 207.8)
-
Step 950
950
#172A2D
oklch(27% 0.025 208.4)
#28646D 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) | #5C606E | 0.061 |
| Deuteranopia (no green cones) | #51596D | 0.054 |
| Tritanopia (no blue cones) | #006867 | 0.025 |
| Achromatopsia (no color) | #5C5C5C | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28646D
#28646D
oklch(46.8% 0.063 208.7)
- #7A4D46
#7A4D46
oklch(46.9% 0.063 29.3)
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 #28646D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.022
- Petrol #005F6A ΔE 0.027
- Dark Green Blue #1F6357 ΔE 0.038
- Deep Turquoise #017374 ΔE 0.045
- YInMn Blue #415A77 ΔE 0.046
- Dark Aquamarine #017371 ΔE 0.046
- Slate #516572 ΔE 0.047
- Denim #3B638C ΔE 0.057
Use #28646D 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.