#28818B
Closest named color: Teal (#008080). oklch(55.6% 0.083 205.9), rgb(40, 129, 139).
Aa
Black text reads best on this color (4.60:1).
About this color
#28818B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 56%, its chroma 0.083 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.024 away. Black text reads best on it, at 4.60:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.60:1 |
| White text | 4.56:1 |
Values
| HEX | #28818B |
| RGB | rgb(40, 129, 139) |
| HSL | hsl(186, 55%, 35%) |
| OKLCH | oklch(55.6% 0.083 205.9) |
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 #28818B | 4.56:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #28818B | 4.60:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #28818B text on white | 4.56:1 | AA | Lc 71.4 | Content text, not long reading |
| #28818B text on black | 4.60:1 | AA | Lc -30.3 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CADDE0
oklch(88.4% 0.021 208.1)
-
Step 300
300
#A6C8CC
oklch(80.9% 0.037 205.2)
-
Step 400
400
#73ACB3
oklch(70.8% 0.06 205.6)
-
Step 500
500
#4B97A0
oklch(63.2% 0.076 205.6)
-
Step 600
600 (this color)
#28818B
oklch(55.6% 0.083 205.9)
-
Step 700
700
#186D76
oklch(49.1% 0.077 205.8)
-
Step 800
800
#185960
oklch(42.7% 0.064 205.5)
-
Step 900
900
#1C494E
oklch(37.7% 0.049 205.2)
-
Step 950
950
#122B2E
oklch(27.1% 0.031 205.7)
#28818B 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) | #767C8C | 0.081 |
| Deuteranopia (no green cones) | #68718B | 0.075 |
| Tritanopia (no blue cones) | #008784 | 0.027 |
| Achromatopsia (no color) | #767676 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28818B
#28818B
oklch(55.6% 0.083 205.9)
- #9E605A
#9E605A
oklch(55.6% 0.082 26)
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 #28818B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.024
- Ocean #017B92 ΔE 0.029
- Dark Cyan #008B8B ΔE 0.031
- Teal Blue #01889F ΔE 0.032
- Deep Aqua #08787F ΔE 0.035
- Bluegreen #017A79 ΔE 0.037
- Cerulean #457B9D ΔE 0.045
- Stormy Blue #507B9C ΔE 0.050
Use #28818B 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.