#63A899
Closest named color: Dull Teal (#5F9E8F). oklch(68.1% 0.074 178.4), rgb(99, 168, 153).
Aa
Black text reads best on this color (7.59:1).
About this color
#63A899 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.074 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Teal (#5F9E8F), ΔE 0.030 away. Black text reads best on it, at 7.59:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Dull Teal (#5F9E8F) |
| Black text | 7.59:1 |
| White text | 2.76:1 |
Values
| HEX | #63A899 |
| RGB | rgb(99, 168, 153) |
| HSL | hsl(167, 28%, 52%) |
| OKLCH | oklch(68.1% 0.074 178.4) |
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 #63A899 | 2.76:1 | Fails | Lc -58.5 | Large or bold text, headings |
| Black text on #63A899 | 7.59:1 | AAA | Lc 50.8 | Large or bold text, headings |
| #63A899 text on white | 2.76:1 | Fails | Lc 53.3 | Large or bold text, headings |
| #63A899 text on black | 7.59:1 | AAA | Lc -48.6 | 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
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C8DFD9
oklch(88.5% 0.026 178.3)
-
Step 300
300
#A1CBC1
oklch(80.9% 0.047 178.9)
-
Step 400
400 (this color)
#63A899
oklch(68.1% 0.074 178.4)
-
Step 500
500
#3B9C8A
oklch(63.1% 0.094 178.6)
-
Step 600
600
#008674
oklch(55.5% 0.101 178.9)
-
Step 700
700
#007161
oklch(49.1% 0.09 178.4)
-
Step 800
800
#005D4F
oklch(42.8% 0.079 177.8)
-
Step 900
900
#114C42
oklch(37.7% 0.061 178.9)
-
Step 950
950
#0D2D27
oklch(27.1% 0.039 178.8)
#63A899 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) | #A3A098 | 0.079 |
| Deuteranopia (no green cones) | #97989A | 0.074 |
| Tritanopia (no blue cones) | #4BAAA3 | 0.022 |
| Achromatopsia (no color) | #9B9B9B | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63A899
#63A899
oklch(68.1% 0.074 178.4)
- #BF8698
#BF8698
oklch(68.2% 0.074 358.6)
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 #63A899, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Teal #5F9E8F ΔE 0.030
- Cadet Blue #5F9EA0 ΔE 0.035
- Grey Teal #5E9B8A ΔE 0.039
- Greeny Blue #42B395 ΔE 0.041
- Light Sea Green #20B2AA ΔE 0.045
- Tea #65AB7C ΔE 0.045
- Greeny Grey #7EA07A ΔE 0.046
- Grey Green #86A17D ΔE 0.048
Use #63A899 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.