#6437BB
Closest named color: Bluey Purple (#6241C7). oklch(47% 0.194 293), rgb(100, 55, 187).
Aa
White text reads best on this color (7.48:1).
About this color
#6437BB is a medium-dark, vivid purple. In OKLCH its lightness is 47%, its chroma 0.194 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.027 away. White text reads best on it, at 7.48:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.194) |
| Temperature | in between |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 2.80:1 |
| White text | 7.48:1 |
Values
| HEX | #6437BB |
| RGB | rgb(100, 55, 187) |
| HSL | hsl(260, 55%, 47%) |
| OKLCH | oklch(47% 0.194 293) |
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 #6437BB | 7.48:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #6437BB | 2.80:1 | Fails | Lc 18.7 | Dividers and decoration only |
| #6437BB text on white | 7.48:1 | AAA | Lc 85.3 | Fine for body text |
| #6437BB text on black | 2.80:1 | Fails | Lc -16.7 | 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 700.
-
Step 50
50
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7FB
oklch(93.6% 0.027 292.8)
-
Step 200
200
#DAD3F9
oklch(88.4% 0.052 293.7)
-
Step 300
300
#C2B6F8
oklch(80.9% 0.093 292.5)
-
Step 400
400
#A58CF5
oklch(70.6% 0.151 293.1)
-
Step 500
500
#916BF1
oklch(63% 0.193 293.1)
-
Step 600
600
#7D4EDF
oklch(55.5% 0.209 293.3)
-
Step 700
700 (this color)
#6437BB
oklch(47% 0.194 293)
-
Step 800
800
#56349D
oklch(42.7% 0.162 293.2)
-
Step 900
900
#462F7D
oklch(37.7% 0.126 292.9)
-
Step 950
950
#291D49
oklch(27.1% 0.079 293)
#6437BB 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) | #0056BF | 0.112 |
| Deuteranopia (no green cones) | #0052B8 | 0.111 |
| Tritanopia (no blue cones) | #4A5975 | 0.154 |
| Achromatopsia (no color) | #555555 | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6437BB
#6437BB
oklch(47% 0.194 293)
- #5C6000
#5C6000
oklch(47% 0.104 112.6)
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 #6437BB, closest first.
No curated palette has a color within ΔE 0.04 of #6437BB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.027
- Blue With A Hint Of Purple #533CC6 ΔE 0.036
- Blurple #5539CC ΔE 0.039
- Purple Blue #5D21D0 ΔE 0.048
- Rebecca Purple #663399 ΔE 0.055
- Grape #7209B7 ΔE 0.058
- Burple #6832E3 ΔE 0.063
- Majorelle Blue #3F37C9 ΔE 0.067
Use #6437BB 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.