#63B09E
Closest named color: Greeny Blue (#42B395). oklch(70.2% 0.082 177), rgb(99, 176, 158).
Aa
Black text reads best on this color (8.23:1).
About this color
#63B09E is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 70%, its chroma 0.082 and its hue 177°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.032 away. Black text reads best on it, at 8.23:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.23:1 |
| White text | 2.55:1 |
Values
| HEX | #63B09E |
| RGB | rgb(99, 176, 158) |
| HSL | hsl(166, 33%, 54%) |
| OKLCH | oklch(70.2% 0.082 177) |
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 #63B09E | 2.55:1 | Fails | Lc -54.9 | Large or bold text, headings |
| Black text on #63B09E | 8.23:1 | AAA | Lc 54.2 | Large or bold text, headings |
| #63B09E text on white | 2.55:1 | Fails | Lc 49.8 | Large or bold text, headings |
| #63B09E text on black | 8.23:1 | AAA | Lc -52.1 | 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 400.
-
Step 50
50
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E0EDE9
oklch(93.5% 0.015 175.7)
-
Step 200
200
#C6E0D9
oklch(88.6% 0.029 177.6)
-
Step 300
300
#9ECCC0
oklch(80.9% 0.051 177.2)
-
Step 400
400 (this color)
#63B09E
oklch(70.2% 0.082 177)
-
Step 500
500
#2D9E88
oklch(63.1% 0.105 176.7)
-
Step 600
600
#008772
oklch(55.7% 0.104 176.6)
-
Step 700
700
#007160
oklch(49.1% 0.091 177.4)
-
Step 800
800
#005D4E
oklch(42.8% 0.079 176.7)
-
Step 900
900
#054D41
oklch(37.7% 0.068 177.3)
-
Step 950
950
#092D26
oklch(26.9% 0.043 177.4)
#63B09E 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) | #ABA89D | 0.086 |
| Deuteranopia (no green cones) | #9E9E9F | 0.082 |
| Tritanopia (no blue cones) | #47B2AB | 0.025 |
| Achromatopsia (no color) | #A2A2A2 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B09E
#63B09E
oklch(70.2% 0.082 177)
- #C98AA0
#C98AA0
oklch(70.2% 0.082 356.8)
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 #63B09E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.032
- Light Sea Green #20B2AA ΔE 0.040
- Tea #65AB7C ΔE 0.046
- Topaz #13BBAF ΔE 0.046
- Dull Teal #5F9E8F ΔE 0.052
- Muted Teal #90B494 ΔE 0.052
- Cadet Blue #5F9EA0 ΔE 0.055
- Dusty Green #76A973 ΔE 0.056
Use #63B09E 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.