#609BBF

Closest named color: Greyblue (#77A1B5). oklch(66.3% 0.082 236.6), rgb(96, 155, 191).

Black text reads best on this color (6.93:1).

About this color

#609BBF is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.082 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.037 away. Black text reads best on it, at 6.93:1.

Hue family	Blues
Lightness	medium-light (66%)
Chroma	moderately saturated (0.082)
Temperature	cool
Nearest name	Greyblue (#77A1B5)
Black text	6.93:1
White text	3.02:1

Values

HEX	#609BBF
RGB	rgb(96, 155, 191)
HSL	hsl(203, 43%, 56%)
OKLCH	oklch(66.3% 0.082 236.6)

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 #609BBF	3.02:1	AA large text	Lc -62.3	Content text, not long reading
Black text on #609BBF	6.93:1	AA	Lc 47.1	Large or bold text, headings
#609BBF text on white	3.02:1	AA large text	Lc 56.9	Large or bold text, headings
#609BBF text on black	6.93:1	AA	Lc -44.9	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

#A9C5D7

oklch(80.8% 0.04 236.2)
Step 400
400

#7AA7C4

oklch(70.7% 0.064 237.1)
Step 500
500 (this color)

#609BBF

oklch(66.3% 0.082 236.6)
Step 600
600

#397BA1

oklch(55.7% 0.089 236.7)
Step 700
700

#2B6789

oklch(49% 0.082 236.7)
Step 800
800

#255470

oklch(42.6% 0.069 237.6)
Step 900
900

#23465A

oklch(37.7% 0.053 235.6)
Step 950
950

#152935

oklch(27% 0.034 236.3)

Export this scale for Tailwind in the Tailwind colors tool

#609BBF 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)	#8A9AC1	0.049
Deuteranopia (no green cones)	#7D90BE	0.042
Tritanopia (no blue cones)	#2FA4A7	0.063
Achromatopsia (no color)	#949494	0.082