#615FB1
Closest named color: Iris (#6258C4). oklch(52.7% 0.126 282.3), rgb(97, 95, 177).
Aa
White text reads best on this color (5.55:1).
About this color
#615FB1 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 53%, its chroma 0.126 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.037 away. White text reads best on it, at 5.55:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.78:1 |
| White text | 5.55:1 |
Values
| HEX | #615FB1 |
| RGB | rgb(97, 95, 177) |
| HSL | hsl(241, 34%, 53%) |
| OKLCH | oklch(52.7% 0.126 282.3) |
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 #615FB1 | 5.55:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #615FB1 | 3.78:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #615FB1 text on white | 5.55:1 | AA | Lc 77.6 | Fine for body text |
| #615FB1 text on black | 3.78:1 | AA large text | Lc -24.2 | 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
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D5D7EE
oklch(88.5% 0.032 281.8)
-
Step 300
300
#BABDE5
oklch(80.9% 0.056 281.7)
-
Step 400
400
#979AD8
oklch(70.7% 0.09 281.7)
-
Step 500
500
#7F80CE
oklch(63.2% 0.116 282)
-
Step 600
600 (this color)
#615FB1
oklch(52.7% 0.126 282.3)
-
Step 700
700
#5856A1
oklch(49.2% 0.118 282.4)
-
Step 800
800
#484782
oklch(42.8% 0.096 282.3)
-
Step 900
900
#3C3C69
oklch(37.8% 0.076 282.2)
-
Step 950
950
#23233D
oklch(27% 0.048 282.7)
#615FB1 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) | #3E6BB4 | 0.050 |
| Deuteranopia (no green cones) | #3A65AF | 0.050 |
| Tritanopia (no blue cones) | #47707F | 0.109 |
| Achromatopsia (no color) | #686868 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #615FB1
#615FB1
oklch(52.7% 0.126 282.3)
- #786C00
#786C00
oklch(52.6% 0.11 101.8)
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 #615FB1, closest first.
No curated palette has a color within ΔE 0.04 of #615FB1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.037
- French Blue #436BAD ΔE 0.048
- Slate Blue #6A5ACD ΔE 0.049
- Dark Periwinkle #665FD1 ΔE 0.051
- Light Indigo #6D5ACF ΔE 0.053
- Dusky Blue #475F94 ΔE 0.060
- Mid Blue #276AB3 ΔE 0.065
- Flat Blue #3C73A8 ΔE 0.070
Use #615FB1 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.