#615CBF
Closest named color: Iris (#6258C4). oklch(53% 0.15 282.2), rgb(97, 92, 191).
Aa
White text reads best on this color (5.53:1).
About this color
#615CBF is a medium-dark, vivid purple. In OKLCH its lightness is 53%, its chroma 0.150 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.013 away. White text reads best on it, at 5.53:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.79:1 |
| White text | 5.53:1 |
Values
| HEX | #615CBF |
| RGB | rgb(97, 92, 191) |
| HSL | hsl(243, 44%, 55%) |
| OKLCH | oklch(53% 0.15 282.2) |
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 #615CBF | 5.53:1 | AA | Lc -82.7 | Fine for body text |
| Black text on #615CBF | 3.79:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #615CBF text on white | 5.53:1 | AA | Lc 77.4 | Fine for body text |
| #615CBF text on black | 3.79:1 | AA large text | Lc -24.3 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D5D7F2
oklch(88.6% 0.037 282.2)
-
Step 300
300
#B9BCEC
oklch(80.9% 0.068 282)
-
Step 400
400
#9698E2
oklch(70.7% 0.108 282.1)
-
Step 500
500
#7E7DDA
oklch(63.2% 0.138 282.2)
-
Step 600
600 (this color)
#615CBF
oklch(53% 0.15 282.2)
-
Step 700
700
#5752AD
oklch(49.1% 0.141 282.4)
-
Step 800
800
#47448C
oklch(42.8% 0.116 282.2)
-
Step 900
900
#3B3A70
oklch(37.8% 0.09 282)
-
Step 950
950
#222241
oklch(26.9% 0.057 281.9)
#615CBF 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) | #2B6CC2 | 0.066 |
| Deuteranopia (no green cones) | #2465BD | 0.067 |
| Tritanopia (no blue cones) | #3E7285 | 0.129 |
| Achromatopsia (no color) | #686868 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #615CBF
#615CBF
oklch(53% 0.15 282.2)
- #796D00
#796D00
oklch(52.9% 0.111 101.8)
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 #615CBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.013
- Slate Blue #6A5ACD ΔE 0.026
- Dark Periwinkle #665FD1 ΔE 0.029
- Light Indigo #6D5ACF ΔE 0.031
- Warm Blue #4B57DB ΔE 0.056
- Bluey Purple #6241C7 ΔE 0.062
- French Blue #436BAD ΔE 0.063
- Royal Blue #4169E1 ΔE 0.067
Use #615CBF 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.