#31729B#31729B

#31729B is a mid, moderate cyan. Relative luminance 0.151; OKLCH L 52.9% C 0.092 H 239.6°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#31729B
RGB	rgb(49, 114, 155)
HSL	hsl(203, 52%, 40%)
HSV	hsv(203, 68%, 61%)
CMYK	cmyk(68.4%, 26.5%, 0%, 39.2%)
CIE-LAB	lab(45.71, -7.06, -28.24)
CIE-LCH	lch(45.71, 29.11, 255.97°)
OKLab	oklab(52.86% -0.0467 -0.0795)
OKLCH	oklch(52.86% 0.092 239.6)
XYZ	xyz(13.1981, 15.0528, 33.2139)
Luminance	0.1505 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31729B #9B5A31

analogous

#319B8F #31729B #313D9B

triadic

#31729B #9B3172 #729B31

tetradic

#31729B #8F319B #9B5A31 #3D9B31

square

#31729B #8F319B #9B5A31 #3D9B31

split-complementary

#31729B #9B313D #9B8F31

monochromatic

#142E3E #22506D #31729B #4593C4 #73AED3

Accessibility & contrast

On white

5.24

#31729B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#31729B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #31729B

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31729B	#FFFFFF	#000000	##FFFFFF
##31729B	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F729D

Deuteranopia (green-blind)

#51689A

Tritanopia (blue-blind)

#007C80

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #31729b;
/* rgb */ color: rgb(49, 114, 155);
/* oklch */ color: oklch(52.9% 0.092 239.6);

Tailwind

colors: {
  custom: {
    50: '#759ab8',
    500: '#31729b',
    950: '#000000',
  },
}

SCSS

$custom: #31729b;
$custom-light: #759ab8;
$custom-dark: #000000;

JSON

{
  "hex": "#31729b",
  "rgb": {
    "r": 49,
    "g": 114,
    "b": 155
  },
  "hsl": {
    "h": 203.208,
    "s": 51.961,
    "l": 40
  },
  "oklch": {
    "l": 0.5286,
    "c": 0.09222,
    "h": 239.6
  },
  "luminance": 0.15054
}

Semantic roles & 50–950 ramp

primary

#31729B

secondary

#BB8B6D

accent

#844CDB

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #31729B

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

Preview Lab → · Contrast checker → · Palette generator →