#6C59CB
Closest named color: Slate Blue (#6A5ACD). oklch(54.2% 0.17 287), rgb(108, 89, 203).
Aa
White text reads best on this color (5.34:1).
About this color
#6C59CB is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.170 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Slate Blue (#6A5ACD), ΔE 0.005 away. White text reads best on it, at 5.34:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.170) |
| Temperature | cool |
| Nearest name | Slate Blue (#6A5ACD) |
| Black text | 3.92:1 |
| White text | 5.34:1 |
Values
| HEX | #6C59CB |
| RGB | rgb(108, 89, 203) |
| HSL | hsl(250, 52%, 57%) |
| OKLCH | oklch(54.2% 0.17 287) |
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 #6C59CB | 5.34:1 | AA | Lc -81.6 | Fine for body text |
| Black text on #6C59CB | 3.92:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #6C59CB text on white | 5.34:1 | AA | Lc 76.3 | Fine for body text |
| #6C59CB text on black | 3.92:1 | AA large text | Lc -25.4 | 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
#F5F5FC
oklch(97.2% 0.009 286.2)
-
Step 100
100
#E8E8F8
oklch(93.6% 0.022 286)
-
Step 200
200
#D6D5F5
oklch(88.4% 0.044 286.9)
-
Step 300
300
#BDBAF0
oklch(81% 0.076 287.1)
-
Step 400
400
#9C94E9
oklch(70.7% 0.123 287.1)
-
Step 500
500
#8577E2
oklch(63.1% 0.157 287)
-
Step 600
600 (this color)
#6C59CB
oklch(54.2% 0.17 287)
-
Step 700
700
#5E4CB4
oklch(49.1% 0.158 287)
-
Step 800
800
#4C3F92
oklch(42.7% 0.132 286.6)
-
Step 900
900
#3F3674
oklch(37.6% 0.103 287)
-
Step 950
950
#252044
oklch(26.9% 0.065 287.6)
#6C59CB 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) | #116ECF | 0.094 |
| Deuteranopia (no green cones) | #0F68C9 | 0.093 |
| Tritanopia (no blue cones) | #4D7289 | 0.141 |
| Achromatopsia (no color) | #6B6B6B | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C59CB
#6C59CB
oklch(54.2% 0.17 287)
- #787300
#787300
oklch(54.2% 0.116 106.7)
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 #6C59CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Blue #6A5ACD ΔE 0.005
- Light Indigo #6D5ACF ΔE 0.007
- Dark Periwinkle #665FD1 ΔE 0.018
- Iris #6258C4 ΔE 0.019
- Warm Blue #4B57DB ΔE 0.055
- Bluey Purple #6241C7 ΔE 0.057
- Purpley #8756E4 ΔE 0.058
- Medium Slate Blue #7B68EE ΔE 0.067
Use #6C59CB 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.