#31689B#31689B

#31689B is a mid, moderate cyan. Relative luminance 0.129; OKLCH L 50.4% C 0.100 H 248.9°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#31689B
RGB	rgb(49, 104, 155)
HSL	hsl(209, 52%, 40%)
HSV	hsv(209, 68%, 61%)
CMYK	cmyk(68.4%, 32.9%, 0%, 39.2%)
CIE-LAB	lab(42.64, -1.02, -33.05)
CIE-LCH	lch(42.64, 33.06, 268.23°)
OKLab	oklab(50.44% -0.0361 -0.0935)
OKLCH	oklch(50.44% 0.1 248.9)
XYZ	xyz(12.1311, 12.9189, 32.8583)
Luminance	0.1292 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31689B #9B6431

analogous

#319B99 #31689B #31339B

triadic

#31689B #9B3168 #689B31

tetradic

#31689B #99319B #9B6431 #339B31

square

#31689B #99319B #9B6431 #339B31

split-complementary

#31689B #9B3133 #9B9931

monochromatic

#142A3E #22496D #31689B #4587C4 #73A5D3

Accessibility & contrast

On white

5.86

#31689B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#31689B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #31689B

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31689B	#FFFFFF	#000000	##FFFFFF
##31689B	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#516A9D

Deuteranopia (green-blind)

#43609A

Tritanopia (blue-blind)

#00747A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #31689b;
/* rgb */ color: rgb(49, 104, 155);
/* oklch */ color: oklch(50.4% 0.100 248.9);

Tailwind

colors: {
  custom: {
    50: '#7592b8',
    500: '#31689b',
    950: '#000000',
  },
}

SCSS

$custom: #31689b;
$custom-light: #7592b8;
$custom-dark: #000000;

JSON

{
  "hex": "#31689b",
  "rgb": {
    "r": 49,
    "g": 104,
    "b": 155
  },
  "hsl": {
    "h": 208.868,
    "s": 51.961,
    "l": 40
  },
  "oklch": {
    "l": 0.5044,
    "c": 0.10026,
    "h": 248.9
  },
  "luminance": 0.1292
}

Semantic roles & 50–950 ramp

primary

#31689B

secondary

#BB926D

accent

#914CDB

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#090D11

muted

#7B7D80

Preview Lab

Preview with #31689B

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

Preview Lab → · Contrast checker → · Palette generator →