#63A5AE
Closest named color: Cadet Blue (#5F9EA0). oklch(68.1% 0.069 206.8), rgb(99, 165, 174).
Aa
Black text reads best on this color (7.52:1).
About this color
#63A5AE is a medium-light, muted teal or cyan. In OKLCH its lightness is 68%, its chroma 0.069 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.026 away. Black text reads best on it, at 7.52:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 7.52:1 |
| White text | 2.79:1 |
Values
| HEX | #63A5AE |
| RGB | rgb(99, 165, 174) |
| HSL | hsl(187, 32%, 54%) |
| OKLCH | oklch(68.1% 0.069 206.8) |
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 #63A5AE | 2.79:1 | Fails | Lc -58.9 | Large or bold text, headings |
| Black text on #63A5AE | 7.52:1 | AAA | Lc 50.4 | Large or bold text, headings |
| #63A5AE text on white | 2.79:1 | Fails | Lc 53.6 | Large or bold text, headings |
| #63A5AE text on black | 7.52:1 | AAA | Lc -48.2 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C8DEE1
oklch(88.5% 0.024 206.6)
-
Step 300
300
#A1C9CF
oklch(80.9% 0.043 207.6)
-
Step 400
400 (this color)
#63A5AE
oklch(68.1% 0.069 206.8)
-
Step 500
500
#3C98A4
oklch(63% 0.087 207.1)
-
Step 600
600
#00838F
oklch(55.7% 0.095 206.1)
-
Step 700
700
#006E79
oklch(49.2% 0.084 206.9)
-
Step 800
800
#005A63
oklch(42.7% 0.073 206.6)
-
Step 900
900
#114A51
oklch(37.7% 0.057 207.1)
-
Step 950
950
#0D2B2F
oklch(26.9% 0.036 207.2)
#63A5AE 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) | #9BA0AF | 0.067 |
| Deuteranopia (no green cones) | #8F97AE | 0.062 |
| Tritanopia (no blue cones) | #41AAA8 | 0.033 |
| Achromatopsia (no color) | #9B9B9B | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63A5AE
#63A5AE
oklch(68.1% 0.069 206.8)
- #C08982
#C08982
oklch(68.2% 0.069 27.1)
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 #63A5AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.026
- Greyblue #77A1B5 ΔE 0.028
- Bluegrey #85A3B2 ΔE 0.039
- Bluey Grey #89A0B0 ΔE 0.045
- Dull Teal #5F9E8F ΔE 0.046
- Turquoise Blue #06B1C4 ΔE 0.053
- Light Sea Green #20B2AA ΔE 0.054
- Grey Teal #5E9B8A ΔE 0.054
Use #63A5AE 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.