#6063BB
Closest named color: Iris (#6258C4). oklch(54% 0.135 279.4), rgb(96, 99, 187).
Aa
White text reads best on this color (5.25:1).
About this color
#6063BB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.135 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.032 away. White text reads best on it, at 5.25:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.99:1 |
| White text | 5.25:1 |
Values
| HEX | #6063BB |
| RGB | rgb(96, 99, 187) |
| HSL | hsl(238, 40%, 55%) |
| OKLCH | oklch(54% 0.135 279.4) |
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 #6063BB | 5.25:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #6063BB | 3.99:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #6063BB text on white | 5.25:1 | AA | Lc 75.9 | Fine for body text |
| #6063BB text on black | 3.99:1 | AA large text | Lc -25.8 | Dividers and decoration only |
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 600.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D4D7F0
oklch(88.5% 0.034 280.2)
-
Step 300
300
#B8BDE8
oklch(80.9% 0.061 279.7)
-
Step 400
400
#949ADD
oklch(70.7% 0.098 279.6)
-
Step 500
500
#7A80D3
oklch(63.1% 0.124 279.1)
-
Step 600
600 (this color)
#6063BB
oklch(54% 0.135 279.4)
-
Step 700
700
#5356A6
oklch(49.1% 0.126 279.1)
-
Step 800
800
#444786
oklch(42.7% 0.103 279)
-
Step 900
900
#393C6C
oklch(37.8% 0.081 279)
-
Step 950
950
#21233F
oklch(26.9% 0.052 279.2)
#6063BB 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) | #3D70BE | 0.049 |
| Deuteranopia (no green cones) | #3669B9 | 0.050 |
| Tritanopia (no blue cones) | #3E7686 | 0.118 |
| Achromatopsia (no color) | #6C6C6C | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6063BB
#6063BB
oklch(54% 0.135 279.4)
- #7F6F00
#7F6F00
oklch(54% 0.112 99.3)
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 #6063BB, closest first.
No curated palette has a color within ΔE 0.04 of #6063BB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.032
- Dark Periwinkle #665FD1 ΔE 0.038
- Slate Blue #6A5ACD ΔE 0.040
- Light Indigo #6D5ACF ΔE 0.044
- French Blue #436BAD ΔE 0.048
- Mid Blue #276AB3 ΔE 0.064
- Windows Blue #3778BF ΔE 0.066
- Royal Blue #4169E1 ΔE 0.067
Use #6063BB 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.