#615FB3
Closest named color: Iris (#6258C4). oklch(52.8% 0.129 282.1), rgb(97, 95, 179).
Aa
White text reads best on this color (5.53:1).
About this color
#615FB3 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 53%, its chroma 0.129 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.034 away. White text reads best on it, at 5.53:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.79:1 |
| White text | 5.53:1 |
Values
| HEX | #615FB3 |
| RGB | rgb(97, 95, 179) |
| HSL | hsl(241, 36%, 54%) |
| OKLCH | oklch(52.8% 0.129 282.1) |
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 #615FB3 | 5.53:1 | AA | Lc -82.8 | Fine for body text |
| Black text on #615FB3 | 3.79:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #615FB3 text on white | 5.53:1 | AA | Lc 77.5 | Fine for body text |
| #615FB3 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D5D7EF
oklch(88.5% 0.033 281.9)
-
Step 300
300
#BABDE6
oklch(81% 0.058 281.7)
-
Step 400
400
#979AD9
oklch(70.8% 0.092 281.7)
-
Step 500
500
#7F7FCF
oklch(63.1% 0.119 282.4)
-
Step 600
600 (this color)
#615FB3
oklch(52.8% 0.129 282.1)
-
Step 700
700
#5756A2
oklch(49.2% 0.119 281.7)
-
Step 800
800
#474683
oklch(42.6% 0.099 282.1)
-
Step 900
900
#3C3B69
oklch(37.6% 0.078 283)
-
Step 950
950
#23233E
oklch(27% 0.05 282.6)
#615FB3 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) | #3D6BB6 | 0.050 |
| Deuteranopia (no green cones) | #3866B1 | 0.052 |
| Tritanopia (no blue cones) | #467180 | 0.113 |
| Achromatopsia (no color) | #686868 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #615FB3
#615FB3
oklch(52.8% 0.129 282.1)
- #786D00
#786D00
oklch(52.8% 0.111 102.5)
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 #615FB3, closest first.
No curated palette has a color within ΔE 0.04 of #615FB3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.034
- Slate Blue #6A5ACD ΔE 0.046
- Dark Periwinkle #665FD1 ΔE 0.047
- French Blue #436BAD ΔE 0.049
- Light Indigo #6D5ACF ΔE 0.050
- Dusky Blue #475F94 ΔE 0.063
- Mid Blue #276AB3 ΔE 0.066
- Flat Blue #3C73A8 ΔE 0.071
Use #615FB3 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.