#63A2B4
Closest named color: Greyblue (#77A1B5). oklch(67.6% 0.07 218), rgb(99, 162, 180).
Aa
Black text reads best on this color (7.35:1).
About this color
#63A2B4 is a medium-light, muted teal or cyan. In OKLCH its lightness is 68%, its chroma 0.070 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.022 away. Black text reads best on it, at 7.35:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.35:1 |
| White text | 2.85:1 |
Values
| HEX | #63A2B4 |
| RGB | rgb(99, 162, 180) |
| HSL | hsl(193, 35%, 55%) |
| OKLCH | oklch(67.6% 0.07 218) |
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 #63A2B4 | 2.85:1 | Fails | Lc -59.9 | Large or bold text, headings |
| Black text on #63A2B4 | 7.35:1 | AAA | Lc 49.5 | Large or bold text, headings |
| #63A2B4 text on white | 2.85:1 | Fails | Lc 54.6 | Large or bold text, headings |
| #63A2B4 text on black | 7.35:1 | AAA | Lc -47.2 | 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
#C8DDE4
oklch(88.4% 0.024 219.7)
-
Step 300
300
#A2C8D4
oklch(80.9% 0.044 219)
-
Step 400
400 (this color)
#63A2B4
oklch(67.6% 0.07 218)
-
Step 500
500
#3F96AD
oklch(63% 0.089 218.1)
-
Step 600
600
#0E8099
oklch(55.5% 0.097 218.5)
-
Step 700
700
#006C82
oklch(49.1% 0.088 218.4)
-
Step 800
800
#06586A
oklch(42.6% 0.075 218.5)
-
Step 900
900
#144956
oklch(37.7% 0.058 217.6)
-
Step 950
950
#0E2B32
oklch(27.1% 0.037 216.1)
#63A2B4 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) | #969EB5 | 0.061 |
| Deuteranopia (no green cones) | #8A95B4 | 0.055 |
| Tritanopia (no blue cones) | #3DA8A8 | 0.042 |
| Achromatopsia (no color) | #999999 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63A2B4
#63A2B4
oklch(67.6% 0.07 218)
- #BE8978
#BE8978
oklch(67.8% 0.07 38.5)
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 #63A2B4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.022
- Cadet Blue #5F9EA0 ΔE 0.030
- Bluegrey #85A3B2 ΔE 0.038
- Bluey Grey #89A0B0 ΔE 0.043
- Cool Gray #8D99AE ΔE 0.051
- Dull Teal #5F9E8F ΔE 0.054
- Turquoise Blue #06B1C4 ΔE 0.055
- Blue Grey #758DA3 ΔE 0.058
Use #63A2B4 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.