#678F93

Closest named color: Light Slate Gray (#778899). oklch(62.2% 0.044 203.8), rgb(103, 143, 147).

Black text reads best on this color (5.92:1).

About this color

#678F93 is a medium-light, muted teal or cyan. In OKLCH its lightness is 62%, its chroma 0.044 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Light Slate Gray (#778899), ΔE 0.031 away. Black text reads best on it, at 5.92:1.

Hue family	Teals and cyans
Lightness	medium-light (62%)
Chroma	muted (0.044)
Temperature	cool
Nearest name	Light Slate Gray (#778899)
Black text	5.92:1
White text	3.54:1

Values

HEX	#678F93
RGB	rgb(103, 143, 147)
HSL	hsl(185, 18%, 49%)
OKLCH	oklch(62.2% 0.044 203.8)

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 #678F93	3.54:1	AA large text	Lc -68.5	Content text, not long reading
Black text on #678F93	5.92:1	AA	Lc 41.1	Non-text elements, placeholder text
#678F93 text on white	3.54:1	AA large text	Lc 63.0	Content text, not long reading
#678F93 text on black	5.92:1	AA	Lc -38.7	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

#F3F6F6

oklch(97.1% 0.003 197.1)
Step 100
100

#E5EBEC

oklch(93.6% 0.007 208.8)
Step 200
200

#D0DCDD

oklch(88.6% 0.013 202.9)
Step 300
300

#B1C5C7

oklch(80.9% 0.022 204)
Step 400
400

#88A7AA

oklch(70.6% 0.034 203.7)
Step 500
500 (this color)

#678F93

oklch(62.2% 0.044 203.8)
Step 600
600

#507C80

oklch(55.6% 0.049 203.1)
Step 700
700

#41686C

oklch(49% 0.044 204.1)
Step 800
800

#365558

oklch(42.7% 0.037 203.6)
Step 900
900

#2F4649

oklch(37.6% 0.029 206.2)
Step 950
950

#1C292A

oklch(26.9% 0.018 202.1)

Export this scale for Tailwind in the Tailwind colors tool

#678F93 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)	#898C93	0.044
Deuteranopia (no green cones)	#818693	0.040
Tritanopia (no blue cones)	#589290	0.019
Achromatopsia (no color)	#888888	0.045