#31738F#31738F

#31738F is a mid, moderate cyan. Relative luminance 0.149; OKLCH L 52.5% C 0.080 H 229.0°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#31738F
RGB	rgb(49, 115, 143)
HSL	hsl(198, 49%, 38%)
HSV	hsv(198, 66%, 56%)
CMYK	cmyk(65.7%, 19.6%, 0%, 43.9%)
CIE-LAB	lab(45.49, -11.78, -21.47)
CIE-LCH	lch(45.49, 24.49, 241.25°)
OKLab	oklab(52.52% -0.0522 -0.06)
OKLCH	oklch(52.52% 0.08 229)
XYZ	xyz(12.3533, 14.8963, 28.2055)
Luminance	0.1490 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31738F #8F4D31

analogous

#318F7C #31738F #31448F

triadic

#31738F #8F3173 #738F31

tetradic

#31738F #7C318F #8F4D31 #448F31

square

#31738F #7C318F #8F4D31 #448F31

split-complementary

#31738F #8F3144 #8F7C31

monochromatic

#122A34 #214E61 #31738F #4198BD #6DB1CD

Accessibility & contrast

On white

5.28

#31738F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#31738F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #31738F

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31738F	#FFFFFF	#000000	##FFFFFF
##31738F	1.00	5.28	3.98	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#657190

Deuteranopia (green-blind)

#57678F

Tritanopia (blue-blind)

#007B7C

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #31738f;
/* rgb */ color: rgb(49, 115, 143);
/* oklch */ color: oklch(52.5% 0.080 229.0);

Tailwind

colors: {
  custom: {
    50: '#749bb0',
    500: '#31738f',
    950: '#000000',
  },
}

SCSS

$custom: #31738f;
$custom-light: #749bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#31738f",
  "rgb": {
    "r": 49,
    "g": 115,
    "b": 143
  },
  "hsl": {
    "h": 197.872,
    "s": 48.958,
    "l": 37.647
  },
  "oklch": {
    "l": 0.52516,
    "c": 0.07956,
    "h": 229
  },
  "luminance": 0.14898
}

Semantic roles & 50–950 ramp

primary

#31738F

secondary

#B57E67

accent

#784FD9

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#090E10

muted

#7B7E7F

Preview Lab

Preview with #31738F

Body copy rendered with the generated semantic roles for this colour.

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