#63A1AE
Closest named color: Cadet Blue (#5F9EA0). oklch(67.2% 0.067 212.5), rgb(99, 161, 174).
Aa
Black text reads best on this color (7.23:1).
About this color
#63A1AE is a medium-light, muted teal or cyan. In OKLCH its lightness is 67%, its chroma 0.067 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.022 away. Black text reads best on it, at 7.23:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 7.23:1 |
| White text | 2.90:1 |
Values
| HEX | #63A1AE |
| RGB | rgb(99, 161, 174) |
| HSL | hsl(190, 32%, 54%) |
| OKLCH | oklch(67.2% 0.067 212.5) |
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 #63A1AE | 2.90:1 | Fails | Lc -60.5 | Content text, not long reading |
| Black text on #63A1AE | 7.23:1 | AAA | Lc 48.8 | Large or bold text, headings |
| #63A1AE text on white | 2.90:1 | Fails | Lc 55.2 | Large or bold text, headings |
| #63A1AE text on black | 7.23:1 | AAA | Lc -46.6 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C9DEE2
oklch(88.6% 0.023 210.4)
-
Step 300
300
#A3C8D1
oklch(80.9% 0.041 214.2)
-
Step 400
400 (this color)
#63A1AE
oklch(67.2% 0.067 212.5)
-
Step 500
500
#4197A8
oklch(63.1% 0.085 212.7)
-
Step 600
600
#158193
oklch(55.6% 0.092 212.5)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#0A5966
oklch(42.7% 0.071 212.5)
-
Step 900
900
#164953
oklch(37.7% 0.055 213.2)
-
Step 950
950
#0F2B31
oklch(27% 0.035 213.8)
#63A1AE 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) | #979DAF | 0.063 |
| Deuteranopia (no green cones) | #8A94AE | 0.056 |
| Tritanopia (no blue cones) | #41A7A5 | 0.037 |
| Achromatopsia (no color) | #989898 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63A1AE
#63A1AE
oklch(67.2% 0.067 212.5)
- #BB877C
#BB877C
oklch(67.2% 0.066 32.3)
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 #63A1AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.022
- Greyblue #77A1B5 ΔE 0.025
- Bluegrey #85A3B2 ΔE 0.040
- Bluey Grey #89A0B0 ΔE 0.044
- Dull Teal #5F9E8F ΔE 0.046
- Cool Gray #8D99AE ΔE 0.052
- Grey Teal #5E9B8A ΔE 0.053
- Blue Grey #758DA3 ΔE 0.055
Use #63A1AE 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.