#312AAE#312AAE

#312AAE is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.7% C 0.199 H 274.8°. Best body text is #FFFFFF at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#312AAE
RGB	rgb(49, 42, 174)
HSL	hsl(243, 61%, 42%)
HSV	hsv(243, 76%, 68%)
CMYK	cmyk(71.8%, 75.9%, 0%, 31.8%)
CIE-LAB	lab(27.75, 45.35, -68.48)
CIE-LCH	lch(27.75, 82.13, 303.51°)
OKLab	oklab(39.67% 0.0165 -0.198)
OKLCH	oklch(39.67% 0.199 274.8)
XYZ	xyz(9.7320, 5.3639, 40.5587)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312AAE #A7AE2A

analogous

#2A65AE #312AAE #732AAE

triadic

#312AAE #AE312A #2AAE31

tetradic

#312AAE #AE2A65 #A7AE2A #2AAE73

square

#312AAE #AE2A65 #A7AE2A #2AAE73

split-complementary

#312AAE #AE732A #65AE2A

monochromatic

#15124B #231E7D #312AAE #4B43D2 #7A75DE

Accessibility & contrast

On white

10.13

#312AAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#312AAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312AAE

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312AAE	#FFFFFF	#000000	##FFFFFF
##312AAE	1.00	10.13	2.07	10.13
#FFFFFF	10.13	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B2

Deuteranopia (green-blind)

#003BAC

Tritanopia (blue-blind)

#00516A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #312aae;
/* rgb */ color: rgb(49, 42, 174);
/* oklch */ color: oklch(39.7% 0.199 274.8);

Tailwind

colors: {
  custom: {
    50: '#7d66c7',
    500: '#312aae',
    950: '#000000',
  },
}

SCSS

$custom: #312aae;
$custom-light: #7d66c7;
$custom-dark: #000000;

JSON

{
  "hex": "#312aae",
  "rgb": {
    "r": 49,
    "g": 42,
    "b": 174
  },
  "hsl": {
    "h": 243.182,
    "s": 61.111,
    "l": 42.353
  },
  "oklch": {
    "l": 0.39671,
    "c": 0.19871,
    "h": 274.8
  },
  "luminance": 0.05365
}

Semantic roles & 50–950 ramp

primary

#312AAE

secondary

#C1C56F

accent

#E444DC

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312AAE

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

Preview Lab → · Contrast checker → · Palette generator →