#63A0AF
Closest named color: Cadet Blue (#5F9EA0). oklch(67% 0.067 215.1), rgb(99, 160, 175).
Aa
Black text reads best on this color (7.17:1).
About this color
#63A0AF is a medium-light, muted teal or cyan. In OKLCH its lightness is 67%, its chroma 0.067 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.023 away. Black text reads best on it, at 7.17:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 7.17:1 |
| White text | 2.92:1 |
Values
| HEX | #63A0AF |
| RGB | rgb(99, 160, 175) |
| HSL | hsl(192, 32%, 54%) |
| OKLCH | oklch(67% 0.067 215.1) |
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 #63A0AF | 2.92:1 | Fails | Lc -60.9 | Content text, not long reading |
| Black text on #63A0AF | 7.17:1 | AAA | Lc 48.5 | Large or bold text, headings |
| #63A0AF text on white | 2.92:1 | Fails | Lc 55.6 | Large or bold text, headings |
| #63A0AF text on black | 7.17:1 | AAA | Lc -46.2 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C9DDE3
oklch(88.4% 0.023 217.7)
-
Step 300
300
#A3C8D2
oklch(80.9% 0.042 216)
-
Step 400
400 (this color)
#63A0AF
oklch(67% 0.067 215.1)
-
Step 500
500
#4297AA
oklch(63.2% 0.086 214.7)
-
Step 600
600
#188195
oklch(55.7% 0.093 214.6)
-
Step 700
700
#026D7F
oklch(49.2% 0.086 214.4)
-
Step 800
800
#0C5967
oklch(42.8% 0.071 213.9)
-
Step 900
900
#164954
oklch(37.7% 0.056 214.9)
-
Step 950
950
#0F2B31
oklch(27% 0.035 213.8)
#63A0AF 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) | #959CB0 | 0.060 |
| Deuteranopia (no green cones) | #8993AF | 0.055 |
| Tritanopia (no blue cones) | #41A6A5 | 0.038 |
| Achromatopsia (no color) | #979797 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63A0AF
#63A0AF
oklch(67% 0.067 215.1)
- #BA8779
#BA8779
oklch(67% 0.066 35.9)
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 #63A0AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.023
- Greyblue #77A1B5 ΔE 0.025
- Bluegrey #85A3B2 ΔE 0.041
- Bluey Grey #89A0B0 ΔE 0.044
- Dull Teal #5F9E8F ΔE 0.048
- Cool Gray #8D99AE ΔE 0.051
- Blue Grey #758DA3 ΔE 0.053
- Silver Lake Blue #778DA9 ΔE 0.054
Use #63A0AF 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.