#28656D
Closest named color: Dark Aqua (#05696B). oklch(47.1% 0.063 207.1), rgb(40, 101, 109).
Aa
White text reads best on this color (6.61:1).
About this color
#28656D is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.063 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.020 away. White text reads best on it, at 6.61:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.17:1 |
| White text | 6.61:1 |
Values
| HEX | #28656D |
| RGB | rgb(40, 101, 109) |
| HSL | hsl(187, 46%, 29%) |
| OKLCH | oklch(47.1% 0.063 207.1) |
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 #28656D | 6.61:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #28656D | 3.17:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #28656D text on white | 6.61:1 | AA | Lc 82.5 | Fine for body text |
| #28656D text on black | 3.17:1 | AA large text | Lc -19.4 | 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
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CDDDDF
oklch(88.6% 0.017 205.8)
-
Step 300
300
#ABC7CB
oklch(81% 0.031 207)
-
Step 400
400
#7DAAB0
oklch(70.8% 0.049 206.4)
-
Step 500
500
#5A949D
oklch(63% 0.062 208.3)
-
Step 600
600
#3D7F88
oklch(55.7% 0.068 207.2)
-
Step 700
700 (this color)
#28656D
oklch(47.1% 0.063 207.1)
-
Step 800
800
#28575E
oklch(42.7% 0.052 208.2)
-
Step 900
900
#25484D
oklch(37.7% 0.041 207.5)
-
Step 950
950
#172A2D
oklch(27% 0.025 208.4)
#28656D 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) | #5D616E | 0.062 |
| Deuteranopia (no green cones) | #52596D | 0.057 |
| Tritanopia (no blue cones) | #006967 | 0.025 |
| Achromatopsia (no color) | #5D5D5D | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28656D
#28656D
oklch(47.1% 0.063 207.1)
- #7B4D48
#7B4D48
oklch(47.1% 0.063 26.5)
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 #28656D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.020
- Petrol #005F6A ΔE 0.030
- Dark Green Blue #1F6357 ΔE 0.037
- Deep Turquoise #017374 ΔE 0.042
- Dark Aquamarine #017371 ΔE 0.043
- Slate #516572 ΔE 0.046
- YInMn Blue #415A77 ΔE 0.048
- Deep Aqua #08787F ΔE 0.057
Use #28656D 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.