#397A6B

Closest named color: Bluegreen (#017A79). oklch(53.2% 0.071 176.3), rgb(57, 122, 107).

White text reads best on this color (5.03:1).

About this color

#397A6B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.071 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.031 away. White text reads best on it, at 5.03:1.

Hue family	Teals and cyans
Lightness	medium-dark (53%)
Chroma	moderately saturated (0.071)
Temperature	cool
Nearest name	Bluegreen (#017A79)
Black text	4.17:1
White text	5.03:1

Values

HEX	#397A6B
RGB	rgb(57, 122, 107)
HSL	hsl(166, 36%, 35%)
OKLCH	oklch(53.2% 0.071 176.3)

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 #397A6B	5.03:1	AA	Lc -80.0	Fine for body text
Black text on #397A6B	4.17:1	AA large text	Lc 29.4	Dividers and decoration only
#397A6B text on white	5.03:1	AA	Lc 74.6	Content text, not long reading
#397A6B text on black	4.17:1	AA large text	Lc -27.1	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

#F3F6F5

oklch(97.1% 0.003 174.5)
Step 100
100

#E4ECE9

oklch(93.6% 0.009 171.8)
Step 200
200

#CEDDD9

oklch(88.5% 0.017 178.2)
Step 300
300

#ACC8C0

oklch(81% 0.032 176.4)
Step 400
400

#7FAB9F

oklch(70.6% 0.051 176.1)
Step 500
500

#5C9788

oklch(63.1% 0.066 176.1)
Step 600
600 (this color)

#397A6B

oklch(53.2% 0.071 176.3)
Step 700
700

#326D5F

oklch(49.1% 0.066 175.8)
Step 800
800

#2A594E

oklch(42.7% 0.055 176.3)
Step 900
900

#274941

oklch(37.7% 0.042 177)
Step 950
950

#172B26

oklch(27% 0.028 176.4)

Export this scale for Tailwind in the Tailwind colors tool

#397A6B 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)	#76736A	0.075
Deuteranopia (no green cones)	#6C6C6C	0.071
Tritanopia (no blue cones)	#1A7B75	0.022
Achromatopsia (no color)	#6F6F6F	0.072