#817CA5

Closest named color: Lavender Gray (#7E7F9A). oklch(60.6% 0.062 290), rgb(129, 124, 165).

Black text reads best on this color (5.35:1).

About this color

#817CA5 is a medium-dark, muted purple. In OKLCH its lightness is 61%, its chroma 0.062 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Lavender Gray (#7E7F9A), ΔE 0.022 away. Black text reads best on it, at 5.35:1.

Hue family	Purples
Lightness	medium-dark (61%)
Chroma	muted (0.062)
Temperature	in between
Nearest name	Lavender Gray (#7E7F9A)
Black text	5.35:1
White text	3.91:1

Values

HEX	#817CA5
RGB	rgb(129, 124, 165)
HSL	hsl(247, 19%, 57%)
OKLCH	oklch(60.6% 0.062 290)

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 #817CA5	3.91:1	AA large text	Lc -72.1	Content text, not long reading
Black text on #817CA5	5.35:1	AA	Lc 37.5	Non-text elements, placeholder text
#817CA5 text on white	3.91:1	AA large text	Lc 66.6	Content text, not long reading
#817CA5 text on black	5.35:1	AA	Lc -35.1	Non-text elements, placeholder text

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 500.

Step 50
50

#F5F5F8

oklch(97.1% 0.004 286.3)
Step 100
100

#E9E9EF

oklch(93.6% 0.008 286.2)
Step 200
200

#D8D7E4

oklch(88.4% 0.018 289.6)
Step 300
300

#C0BED3

oklch(81% 0.029 290.1)
Step 400
400

#A09CBD

oklch(70.7% 0.048 290.7)
Step 500
500 (this color)

#817CA5

oklch(60.6% 0.062 290)
Step 600
600

#726D98

oklch(55.6% 0.066 289.4)
Step 700
700

#605B82

oklch(49.2% 0.062 289.8)
Step 800
800

#4E4A6A

oklch(42.6% 0.053 289.7)
Step 900
900

#413E56

oklch(37.7% 0.041 290)
Step 950
950

#262432

oklch(26.9% 0.026 291.1)

Export this scale for Tailwind in the Tailwind colors tool

#817CA5 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)	#7281A7	0.024
Deuteranopia (no green cones)	#7280A4	0.023
Tritanopia (no blue cones)	#79838A	0.054
Achromatopsia (no color)	#818181	0.062