#28677B
Closest named color: Dark Aqua (#05696B). oklch(48.2% 0.071 222.2), rgb(40, 103, 123).
Aa
White text reads best on this color (6.33:1).
About this color
#28677B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 48%, its chroma 0.071 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.035 away. White text reads best on it, at 6.33:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.31:1 |
| White text | 6.33:1 |
Values
| HEX | #28677B |
| RGB | rgb(40, 103, 123) |
| HSL | hsl(194, 51%, 32%) |
| OKLCH | oklch(48.2% 0.071 222.2) |
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 #28677B | 6.33:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #28677B | 3.31:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #28677B text on white | 6.33:1 | AA | Lc 81.3 | Fine for body text |
| #28677B text on black | 3.31:1 | AA large text | Lc -20.6 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CCDCE2
oklch(88.4% 0.019 222.2)
-
Step 300
300
#A9C6D1
oklch(80.9% 0.035 222.7)
-
Step 400
400
#7BA9B9
oklch(70.7% 0.054 221.4)
-
Step 500
500
#5793A8
oklch(63.1% 0.07 222.5)
-
Step 600
600
#397D93
oklch(55.5% 0.076 222)
-
Step 700
700 (this color)
#28677B
oklch(48.2% 0.071 222.2)
-
Step 800
800
#255666
oklch(42.7% 0.059 222.3)
-
Step 900
900
#244753
oklch(37.7% 0.045 222.5)
-
Step 950
950
#162A31
oklch(27.1% 0.029 222.4)
#28677B 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) | #5B647C | 0.057 |
| Deuteranopia (no green cones) | #505C7B | 0.051 |
| Tritanopia (no blue cones) | #006D6D | 0.038 |
| Achromatopsia (no color) | #606060 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28677B
#28677B
oklch(48.2% 0.071 222.2)
- #80503E
#80503E
oklch(48.1% 0.071 41.3)
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 #28677B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.035
- Denim #3B638C ΔE 0.038
- Petrol #005F6A ΔE 0.042
- YInMn Blue #415A77 ΔE 0.042
- Slate #516572 ΔE 0.043
- Deep Turquoise #017374 ΔE 0.044
- Peacock Blue #016795 ΔE 0.044
- Dark Aquamarine #017371 ΔE 0.047
Use #28677B 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.