#2D309E#2D309E

#2D309E is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.7% C 0.173 H 273.6°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#2D309E
RGB	rgb(45, 48, 158)
HSL	hsl(238, 56%, 40%)
HSV	hsv(238, 72%, 62%)
CMYK	cmyk(71.5%, 69.6%, 0%, 38%)
CIE-LAB	lab(27.13, 36.00, -59.84)
CIE-LCH	lch(27.13, 69.84, 301.03°)
OKLab	oklab(38.67% 0.0109 -0.173)
OKLCH	oklch(38.67% 0.173 273.6)
XYZ	xyz(8.3086, 5.1396, 32.8953)
Luminance	0.0514 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D309E #9E9B2D

analogous

#2D699E #2D309E #632D9E

triadic

#2D309E #9E2D30 #309E2D

tetradic

#2D309E #9E2D69 #9E9B2D #2D9E63

square

#2D309E #9E2D69 #9E9B2D #2D9E63

split-complementary

#2D309E #9E632D #699E2D

monochromatic

#12133F #1F226E #2D309E #4043C9 #6F72D6

Accessibility & contrast

On white

10.36

#2D309E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#2D309E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D309E

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D309E	#FFFFFF	#000000	##FFFFFF
##2D309E	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A1

Deuteranopia (green-blind)

#003B9C

Tritanopia (blue-blind)

#004E63

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2d309e;
/* rgb */ color: rgb(45, 48, 158);
/* oklch */ color: oklch(38.7% 0.173 273.6);

Tailwind

colors: {
  custom: {
    50: '#7769bc',
    500: '#2d309e',
    950: '#000000',
  },
}

SCSS

$custom: #2d309e;
$custom-light: #7769bc;
$custom-dark: #000000;

JSON

{
  "hex": "#2d309e",
  "rgb": {
    "r": 45,
    "g": 48,
    "b": 158
  },
  "hsl": {
    "h": 238.407,
    "s": 55.665,
    "l": 39.804
  },
  "oklch": {
    "l": 0.38674,
    "c": 0.17331,
    "h": 273.6
  },
  "luminance": 0.0514
}

Semantic roles & 50–950 ramp

primary

#2D309E

secondary

#BDBB69

accent

#DB49DF

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2D309E

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

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