#31507B#31507B

#31507B is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.8% C 0.081 H 256.8°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#31507B
RGB	rgb(49, 80, 123)
HSL	hsl(215, 43%, 34%)
HSV	hsv(215, 60%, 48%)
CMYK	cmyk(60.2%, 35%, 0%, 51.8%)
CIE-LAB	lab(33.60, 2.62, -27.86)
CIE-LCH	lch(33.60, 27.98, 275.38°)
OKLab	oklab(42.82% -0.0184 -0.0787)
OKLCH	oklch(42.82% 0.081 256.8)
XYZ	xyz(7.7092, 7.8197, 19.8381)
Luminance	0.0782 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31507B #7B5C31

analogous

#31757B #31507B #37317B

triadic

#31507B #7B3150 #507B31

tetradic

#31507B #7B3175 #7B5C31 #317B37

square

#31507B #7B3175 #7B5C31 #317B37

split-complementary

#31507B #7B3731 #757B31

monochromatic

#0E1723 #20344F #31507B #426CA7 #658CC2

Accessibility & contrast

On white

8.19

#31507B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#31507B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31507B

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31507B	#FFFFFF	#000000	##FFFFFF
##31507B	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E537D

Deuteranopia (green-blind)

#354C7A

Tritanopia (blue-blind)

#005A60

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #31507b;
/* rgb */ color: rgb(49, 80, 123);
/* oklch */ color: oklch(42.8% 0.081 256.8);

Tailwind

colors: {
  custom: {
    50: '#7080a1',
    500: '#31507b',
    950: '#000000',
  },
}

SCSS

$custom: #31507b;
$custom-light: #7080a1;
$custom-dark: #000000;

JSON

{
  "hex": "#31507b",
  "rgb": {
    "r": 49,
    "g": 80,
    "b": 123
  },
  "hsl": {
    "h": 214.865,
    "s": 43.023,
    "l": 33.725
  },
  "oklch": {
    "l": 0.42816,
    "c": 0.08082,
    "h": 256.8
  },
  "luminance": 0.0782
}

Semantic roles & 50–950 ramp

primary

#31507B

secondary

#A98A5F

accent

#9E55D3

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#080A0F

muted

#7B7C7E

Preview Lab

Preview with #31507B

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

Preview Lab → · Contrast checker → · Palette generator →