#28665C
Closest named color: Dark Green Blue (#1F6357). oklch(46.7% 0.066 181.1), rgb(40, 102, 92).
Aa
White text reads best on this color (6.67:1).
About this color
#28665C is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.066 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.014 away. White text reads best on it, at 6.67:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.14:1 |
| White text | 6.67:1 |
Values
| HEX | #28665C |
| RGB | rgb(40, 102, 92) |
| HSL | hsl(170, 44%, 28%) |
| OKLCH | oklch(46.7% 0.066 181.1) |
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 #28665C | 6.67:1 | AA | Lc -87.8 | Fine for body text |
| Black text on #28665C | 3.14:1 | AA large text | Lc 21.3 | Dividers and decoration only |
| #28665C text on white | 6.67:1 | AA | Lc 82.8 | Fine for body text |
| #28665C text on black | 3.14:1 | AA large text | Lc -19.2 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CDDDDA
oklch(88.5% 0.018 183.5)
-
Step 300
300
#ABC8C2
oklch(81% 0.032 181.6)
-
Step 400
400
#7EABA2
oklch(70.6% 0.05 181.1)
-
Step 500
500
#5B978C
oklch(63.2% 0.065 181.1)
-
Step 600
600
#3E8176
oklch(55.6% 0.071 181.5)
-
Step 700
700 (this color)
#28665C
oklch(46.7% 0.066 181.1)
-
Step 800
800
#295951
oklch(42.8% 0.054 181.4)
-
Step 900
900
#264943
oklch(37.7% 0.042 181.6)
-
Step 950
950
#172B27
oklch(27.1% 0.027 180)
#28665C 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) | #62605C | 0.071 |
| Deuteranopia (no green cones) | #58595D | 0.067 |
| Tritanopia (no blue cones) | #006863 | 0.018 |
| Achromatopsia (no color) | #5C5C5C | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28665C
#28665C
oklch(46.7% 0.066 181.1)
- #794A58
#794A58
oklch(46.7% 0.066 0.7)
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 #28665C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.014
- Dark Aqua #05696B ΔE 0.025
- Petrol #005F6A ΔE 0.042
- Dark Aquamarine #017371 ΔE 0.043
- Deep Turquoise #017374 ΔE 0.046
- Pine #2B5D34 ΔE 0.059
- Spruce #0A5F38 ΔE 0.061
- Slate #516572 ΔE 0.062
Use #28665C 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.