#63A38D
Closest named color: Dull Teal (#5F9E8F). oklch(66.6% 0.074 170.1), rgb(99, 163, 141).
Aa
Black text reads best on this color (7.15:1).
About this color
#63A38D is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.074 and its hue 170°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Teal (#5F9E8F), ΔE 0.017 away. Black text reads best on it, at 7.15:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Dull Teal (#5F9E8F) |
| Black text | 7.15:1 |
| White text | 2.93:1 |
Values
| HEX | #63A38D |
| RGB | rgb(99, 163, 141) |
| HSL | hsl(159, 26%, 51%) |
| OKLCH | oklch(66.6% 0.074 170.1) |
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 #63A38D | 2.93:1 | Fails | Lc -61.0 | Content text, not long reading |
| Black text on #63A38D | 7.15:1 | AAA | Lc 48.3 | Large or bold text, headings |
| #63A38D text on white | 2.93:1 | Fails | Lc 55.7 | Large or bold text, headings |
| #63A38D text on black | 7.15:1 | AAA | Lc -46.1 | Large or bold text, headings |
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 500.
-
Step 50
50
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CDDED7
oklch(88.6% 0.021 169.3)
-
Step 300
300
#AAC9BD
oklch(81% 0.037 170)
-
Step 400
400
#7CAD9B
oklch(70.8% 0.059 169.8)
-
Step 500
500 (this color)
#63A38D
oklch(66.6% 0.074 170.1)
-
Step 600
600
#3B836C
oklch(55.7% 0.081 169.8)
-
Step 700
700
#2D6E5A
oklch(49% 0.074 170.1)
-
Step 800
800
#265A4A
oklch(42.7% 0.062 170.5)
-
Step 900
900
#254A3E
oklch(37.7% 0.048 170.5)
-
Step 950
950
#162B24
oklch(26.9% 0.03 170.6)
#63A38D 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) | #A09B8C | 0.077 |
| Deuteranopia (no green cones) | #95938E | 0.074 |
| Tritanopia (no blue cones) | #50A49C | 0.025 |
| Achromatopsia (no color) | #979797 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63A38D
#63A38D
oklch(66.6% 0.074 170.1)
- #B7819A
#B7819A
oklch(66.5% 0.074 349.9)
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 #63A38D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Teal #5F9E8F ΔE 0.017
- Grey Teal #5E9B8A ΔE 0.024
- Greeny Grey #7EA07A ΔE 0.035
- Cadet Blue #5F9EA0 ΔE 0.036
- Tea #65AB7C ΔE 0.039
- Grey Green #86A17D ΔE 0.042
- Greeny Blue #42B395 ΔE 0.047
- Dusty Green #76A973 ΔE 0.048
Use #63A38D 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.