#63B299
Closest named color: Greeny Blue (#42B395). oklch(70.6% 0.087 171.2), rgb(99, 178, 153).
Aa
Black text reads best on this color (8.35:1).
About this color
#63B299 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.087 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.027 away. Black text reads best on it, at 8.35:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.35:1 |
| White text | 2.51:1 |
Values
| HEX | #63B299 |
| RGB | rgb(99, 178, 153) |
| HSL | hsl(161, 34%, 54%) |
| OKLCH | oklch(70.6% 0.087 171.2) |
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 #63B299 | 2.51:1 | Fails | Lc -54.2 | Large or bold text, headings |
| Black text on #63B299 | 8.35:1 | AAA | Lc 54.9 | Large or bold text, headings |
| #63B299 text on white | 2.51:1 | Fails | Lc 49.2 | Large or bold text, headings |
| #63B299 text on black | 8.35:1 | AAA | Lc -52.8 | 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
#E0EDE8
oklch(93.5% 0.015 171)
-
Step 200
200
#C6E0D6
oklch(88.5% 0.031 170.5)
-
Step 300
300
#9ECDBC
oklch(81% 0.055 170.7)
-
Step 400
400 (this color)
#63B299
oklch(70.6% 0.087 171.2)
-
Step 500
500
#2A9F81
oklch(63.1% 0.111 171.4)
-
Step 600
600
#00876B
oklch(55.5% 0.108 171.4)
-
Step 700
700
#007259
oklch(49.1% 0.097 170.7)
-
Step 800
800
#005D49
oklch(42.6% 0.083 171.6)
-
Step 900
900
#024E3C
oklch(37.8% 0.074 170.5)
-
Step 950
950
#082E23
oklch(27.1% 0.047 169.7)
#63B299 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) | #AEA998 | 0.090 |
| Deuteranopia (no green cones) | #A1A09B | 0.085 |
| Tritanopia (no blue cones) | #48B3AB | 0.030 |
| Achromatopsia (no color) | #A3A3A3 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B299
#63B299
oklch(70.6% 0.087 171.2)
- #CA8AA7
#CA8AA7
oklch(70.6% 0.086 350.8)
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 #63B299, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.027
- Tea #65AB7C ΔE 0.039
- Light Sea Green #20B2AA ΔE 0.043
- Topaz #13BBAF ΔE 0.046
- Muted Teal #90B494 ΔE 0.049
- Dusty Green #76A973 ΔE 0.049
- Faded Green #7BB274 ΔE 0.052
- Sage Green #88B378 ΔE 0.055
Use #63B299 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.