#20718B
Closest named color: Sea Blue (#047495). oklch(51.3% 0.085 224), rgb(32, 113, 139).
Aa
White text reads best on this color (5.53:1).
About this color
#20718B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.085 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.017 away. White text reads best on it, at 5.53:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.79:1 |
| White text | 5.53:1 |
Values
| HEX | #20718B |
| RGB | rgb(32, 113, 139) |
| HSL | hsl(195, 63%, 34%) |
| OKLCH | oklch(51.3% 0.085 224) |
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 #20718B | 5.53:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #20718B | 3.79:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #20718B text on white | 5.53:1 | AA | Lc 77.3 | Fine for body text |
| #20718B text on black | 3.79:1 | AA large text | Lc -24.5 | 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
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#CADDE4
oklch(88.5% 0.023 221.8)
-
Step 300
300
#A5C7D5
oklch(80.9% 0.041 224.8)
-
Step 400
400
#72AABF
oklch(70.7% 0.066 223.5)
-
Step 500
500
#4A94AF
oklch(63% 0.084 224.5)
-
Step 600
600
#267E9B
oklch(55.5% 0.092 224.5)
-
Step 700
700 (this color)
#20718B
oklch(51.3% 0.085 224)
-
Step 800
800
#17576C
oklch(42.7% 0.071 224.5)
-
Step 900
900
#1B4857
oklch(37.7% 0.055 223.2)
-
Step 950
950
#112A33
oklch(26.9% 0.035 224)
#20718B 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) | #626E8C | 0.066 |
| Deuteranopia (no green cones) | #54648B | 0.058 |
| Tritanopia (no blue cones) | #007979 | 0.045 |
| Achromatopsia (no color) | #686868 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #20718B
#20718B
oklch(51.3% 0.085 224)
- #8F563D
#8F563D
oklch(51.2% 0.085 44.1)
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 #20718B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.017
- Ocean Blue #03719C ΔE 0.028
- Ocean #017B92 ΔE 0.029
- Deep Aqua #08787F ΔE 0.034
- Muted Blue #3B719F ΔE 0.040
- Peacock Blue #016795 ΔE 0.041
- Deep Turquoise #017374 ΔE 0.043
- Metallic Blue #4F738E ΔE 0.043
Use #20718B 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.