#528BAE

Closest named color: Dusty Blue (#5A86AD). oklch(61.2% 0.08 237), rgb(82, 139, 174).

Black text reads best on this color (5.66:1).

About this color

#528BAE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.080 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.015 away. Black text reads best on it, at 5.66:1.

Hue family	Blues
Lightness	medium-dark (61%)
Chroma	moderately saturated (0.080)
Temperature	cool
Nearest name	Dusty Blue (#5A86AD)
Black text	5.66:1
White text	3.70:1

Values

HEX	#528BAE
RGB	rgb(82, 139, 174)
HSL	hsl(203, 36%, 50%)
OKLCH	oklch(61.2% 0.08 237)

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 #528BAE	3.70:1	AA large text	Lc -70.0	Content text, not long reading
Black text on #528BAE	5.66:1	AA	Lc 39.6	Non-text elements, placeholder text
#528BAE text on white	3.70:1	AA large text	Lc 64.5	Content text, not long reading
#528BAE text on black	5.66:1	AA	Lc -37.1	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

#F2F6F9

oklch(97.1% 0.006 239.8)
Step 100
100

#E3EBF1

oklch(93.6% 0.012 239.9)
Step 200
200

#CCDCE6

oklch(88.5% 0.022 235)
Step 300
300

#AAC5D7

oklch(80.9% 0.039 237.2)
Step 400
400

#7BA7C3

oklch(70.7% 0.063 236.7)
Step 500
500 (this color)

#528BAE

oklch(61.2% 0.08 237)
Step 600
600

#3B7BA0

oklch(55.7% 0.087 236.6)
Step 700
700

#2D6789

oklch(49.1% 0.081 237.4)
Step 800
800

#26546F

oklch(42.6% 0.067 237.1)
Step 900
900

#24465A

oklch(37.8% 0.052 236.3)
Step 950
950

#162935

oklch(27.1% 0.033 237.5)

Export this scale for Tailwind in the Tailwind colors tool

#528BAE 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)	#7B8AB0	0.048
Deuteranopia (no green cones)	#6E80AD	0.042
Tritanopia (no blue cones)	#1A9497	0.063
Achromatopsia (no color)	#858585	0.080