#63ABCE
Closest named color: Greyblue (#77A1B5). oklch(70.8% 0.089 230.9), rgb(99, 171, 206).
Aa
Black text reads best on this color (8.24:1).
About this color
#63ABCE is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.089 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.041 away. Black text reads best on it, at 8.24:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.24:1 |
| White text | 2.54:1 |
Values
| HEX | #63ABCE |
| RGB | rgb(99, 171, 206) |
| HSL | hsl(200, 52%, 60%) |
| OKLCH | oklch(70.8% 0.089 230.9) |
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 #63ABCE | 2.54:1 | Fails | Lc -54.8 | Large or bold text, headings |
| Black text on #63ABCE | 8.24:1 | AAA | Lc 54.3 | Large or bold text, headings |
| #63ABCE text on white | 2.54:1 | Fails | Lc 49.7 | Large or bold text, headings |
| #63ABCE text on black | 8.24:1 | AAA | Lc -52.2 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C6DDEA
oklch(88.4% 0.03 232.5)
-
Step 300
300
#9DC8DE
oklch(80.9% 0.055 230.5)
-
Step 400
400 (this color)
#63ABCE
oklch(70.8% 0.089 230.9)
-
Step 500
500
#2C95C1
oklch(63.1% 0.113 230.9)
-
Step 600
600
#007EA8
oklch(55.6% 0.112 230.6)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800
#005775
oklch(42.8% 0.086 230.3)
-
Step 900
900
#044861
oklch(37.7% 0.074 230.4)
-
Step 950
950
#082A39
oklch(26.9% 0.047 231.5)
#63ABCE 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) | #9AA9D0 | 0.062 |
| Deuteranopia (no green cones) | #8A9DCE | 0.054 |
| Tritanopia (no blue cones) | #21B5B6 | 0.066 |
| Achromatopsia (no color) | #A2A2A2 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63ABCE
#63ABCE
oklch(70.8% 0.089 230.9)
- #CE916E
#CE916E
oklch(70.8% 0.089 50.7)
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 #63ABCE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.041
- Bluegrey #85A3B2 ΔE 0.050
- Turquoise Blue #06B1C4 ΔE 0.052
- Bluey Grey #89A0B0 ΔE 0.056
- Cool Steel #97A7B3 ΔE 0.065
- Cool Gray #8D99AE ΔE 0.068
- Cadet Blue #5F9EA0 ΔE 0.070
- Cool Grey #95A3A6 ΔE 0.073
Use #63ABCE 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.