#31748B#31748B

#31748B is a mid, moderate cyan. Relative luminance 0.150; OKLCH L 52.6% C 0.076 H 223.8°. Best body text is #FFFFFF at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#31748B
RGB	rgb(49, 116, 139)
HSL	hsl(195, 48%, 37%)
HSV	hsv(195, 65%, 55%)
CMYK	cmyk(64.7%, 16.5%, 0%, 45.5%)
CIE-LAB	lab(45.64, -13.69, -18.86)
CIE-LCH	lch(45.64, 23.31, 234.03°)
OKLab	oklab(52.58% -0.0549 -0.0526)
OKLCH	oklch(52.58% 0.076 223.8)
XYZ	xyz(12.1704, 15.0066, 26.6763)
Luminance	0.1501 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31748B #8B4831

analogous

#318B75 #31748B #31478B

triadic

#31748B #8B3174 #748B31

tetradic

#31748B #75318B #8B4831 #478B31

square

#31748B #75318B #8B4831 #478B31

split-complementary

#31748B #8B3147 #8B7531

monochromatic

#112831 #214E5E #31748B #419AB8 #6BB3CB

Accessibility & contrast

On white

5.25

#31748B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#31748B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #31748B

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31748B	#FFFFFF	#000000	##FFFFFF
##31748B	1.00	5.25	4.00	5.25
#FFFFFF	5.25	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#67718C

Deuteranopia (green-blind)

#5A688B

Tritanopia (blue-blind)

#007B7B

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #31748b;
/* rgb */ color: rgb(49, 116, 139);
/* oklch */ color: oklch(52.6% 0.076 223.8);

Tailwind

colors: {
  custom: {
    50: '#739cad',
    500: '#31748b',
    950: '#000000',
  },
}

SCSS

$custom: #31748b;
$custom-light: #739cad;
$custom-dark: #000000;

JSON

{
  "hex": "#31748b",
  "rgb": {
    "r": 49,
    "g": 116,
    "b": 139
  },
  "hsl": {
    "h": 195.333,
    "s": 47.872,
    "l": 36.863
  },
  "oklch": {
    "l": 0.52583,
    "c": 0.07605,
    "h": 223.8
  },
  "luminance": 0.15008
}

Semantic roles & 50–950 ramp

primary

#31748B

secondary

#B27965

accent

#7350D7

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#090E10

muted

#7B7E7F

Preview Lab

Preview with #31748B

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

Preview Lab → · Contrast checker → · Palette generator →