#31699B#31699B

#31699B is a mid, moderate cyan. Relative luminance 0.131; OKLCH L 50.7% C 0.099 H 248.1°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#31699B
RGB	rgb(49, 105, 155)
HSL	hsl(208, 52%, 40%)
HSV	hsv(208, 68%, 61%)
CMYK	cmyk(68.4%, 32.3%, 0%, 39.2%)
CIE-LAB	lab(42.95, -1.63, -32.57)
CIE-LCH	lch(42.95, 32.61, 267.13°)
OKLab	oklab(50.68% -0.0371 -0.0921)
OKLCH	oklch(50.68% 0.099 248.1)
XYZ	xyz(12.2324, 13.1214, 32.8920)
Luminance	0.1312 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31699B #9B6331

analogous

#319B98 #31699B #31349B

triadic

#31699B #9B3169 #699B31

tetradic

#31699B #98319B #9B6331 #349B31

square

#31699B #98319B #9B6331 #349B31

split-complementary

#31699B #9B3134 #9B9831

monochromatic

#142A3E #22496D #31699B #4588C4 #73A6D3

Accessibility & contrast

On white

5.79

#31699B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#31699B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #31699B

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31699B	#FFFFFF	#000000	##FFFFFF
##31699B	1.00	5.79	3.62	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#536B9D

Deuteranopia (green-blind)

#44619A

Tritanopia (blue-blind)

#00757B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #31699b;
/* rgb */ color: rgb(49, 105, 155);
/* oklch */ color: oklch(50.7% 0.099 248.1);

Tailwind

colors: {
  custom: {
    50: '#7593b8',
    500: '#31699b',
    950: '#000000',
  },
}

SCSS

$custom: #31699b;
$custom-light: #7593b8;
$custom-dark: #000000;

JSON

{
  "hex": "#31699b",
  "rgb": {
    "r": 49,
    "g": 105,
    "b": 155
  },
  "hsl": {
    "h": 208.302,
    "s": 51.961,
    "l": 40
  },
  "oklch": {
    "l": 0.5068,
    "c": 0.09934,
    "h": 248.1
  },
  "luminance": 0.13123
}

Semantic roles & 50–950 ramp

primary

#31699B

secondary

#BB926D

accent

#904CDB

background

#F7F9FB

surface

#EEF1F6

border

#C9CBD0

text

#090D11

muted

#7B7E80

Preview Lab

Preview with #31699B

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

Preview Lab → · Contrast checker → · Palette generator →