#20878B
Closest named color: Dark Cyan (#008B8B). oklch(57% 0.089 198.9), rgb(32, 135, 139).
Aa
Black text reads best on this color (4.89:1).
About this color
#20878B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.089 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.013 away. Black text reads best on it, at 4.89:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 4.89:1 |
| White text | 4.28:1 |
Values
| HEX | #20878B |
| RGB | rgb(32, 135, 139) |
| HSL | hsl(182, 63%, 34%) |
| OKLCH | oklch(57% 0.089 198.9) |
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 #20878B | 4.28:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #20878B | 4.89:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #20878B text on white | 4.28:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #20878B text on black | 4.89:1 | AA | Lc -32.4 | 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
#F2F7F7
oklch(97.2% 0.005 197.1)
-
Step 100
100
#E1ECED
oklch(93.5% 0.012 203.5)
-
Step 200
200
#C9DEDF
oklch(88.5% 0.022 200.2)
-
Step 300
300
#A3C9CA
oklch(80.9% 0.04 198.4)
-
Step 400
400
#6FADB0
oklch(70.7% 0.064 199.7)
-
Step 500
500
#43999C
oklch(63.2% 0.082 198.4)
-
Step 600
600 (this color)
#20878B
oklch(57% 0.089 198.9)
-
Step 700
700
#046F72
oklch(49.2% 0.083 198.1)
-
Step 800
800
#0E5A5D
oklch(42.7% 0.068 199.1)
-
Step 900
900
#174A4C
oklch(37.7% 0.053 198.8)
-
Step 950
950
#0F2B2D
oklch(26.9% 0.034 201.6)
#20878B 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) | #7D818B | 0.091 |
| Deuteranopia (no green cones) | #6E758C | 0.086 |
| Tritanopia (no blue cones) | #008C88 | 0.018 |
| Achromatopsia (no color) | #7A7A7A | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #20878B
#20878B
oklch(57% 0.089 198.9)
- #A56162
#A56162
oklch(56.9% 0.089 19.3)
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 #20878B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.013
- Teal #008080 ΔE 0.028
- Teal Blue #01889F ΔE 0.031
- Teal Green #0A9396 ΔE 0.035
- Ocean #017B92 ΔE 0.044
- Dusty Teal #4C9085 ΔE 0.046
- Bluegreen #017A79 ΔE 0.046
- Deep Aqua #08787F ΔE 0.048
Use #20878B 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.