#2C307B#2C307B

#2C307B is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.4% C 0.125 H 275.6°. Best body text is #FFFFFF at 11.57:1 contrast (WCAG AA passes).

Color values

HEX	#2C307B
RGB	rgb(44, 48, 123)
HSL	hsl(237, 47%, 33%)
HSV	hsv(237, 64%, 48%)
CMYK	cmyk(64.2%, 61%, 0%, 51.8%)
CIE-LAB	lab(23.93, 23.25, -43.35)
CIE-LCH	lch(23.93, 49.19, 298.20°)
OKLab	oklab(35.35% 0.0123 -0.1246)
OKLCH	oklch(35.35% 0.125 275.6)
XYZ	xyz(5.6696, 4.0790, 19.2236)
Luminance	0.0408 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C307B #7B772C

analogous

#2C577B #2C307B #4F2C7B

triadic

#2C307B #7B2C30 #307B2C

tetradic

#2C307B #7B2C57 #7B772C #2C7B4F

square

#2C307B #7B2C57 #7B772C #2C7B4F

split-complementary

#2C307B #7B4F2C #577B2C

monochromatic

#0C0D21 #1C1E4E #2C307B #3C42A8 #5D62C5

Accessibility & contrast

On white

11.57

#2C307B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#2C307B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C307B

11.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C307B	#FFFFFF	#000000	##FFFFFF
##2C307B	1.00	11.57	1.82	11.57
#FFFFFF	11.57	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7D

Deuteranopia (green-blind)

#003679

Tritanopia (blue-blind)

#004250

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #2c307b;
/* rgb */ color: rgb(44, 48, 123);
/* oklch */ color: oklch(35.4% 0.125 275.6);

Tailwind

colors: {
  custom: {
    50: '#6e68a2',
    500: '#2c307b',
    950: '#000000',
  },
}

SCSS

$custom: #2c307b;
$custom-light: #6e68a2;
$custom-dark: #000000;

JSON

{
  "hex": "#2c307b",
  "rgb": {
    "r": 44,
    "g": 48,
    "b": 123
  },
  "hsl": {
    "h": 236.962,
    "s": 47.305,
    "l": 32.745
  },
  "oklch": {
    "l": 0.35352,
    "c": 0.12525,
    "h": 275.6
  },
  "luminance": 0.04079
}

Semantic roles & 50–950 ramp

primary

#2C307B

secondary

#ABA758

accent

#D051D7

background

#F7F6FA

surface

#EDEBF3

border

#C8C6CD

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #2C307B

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

Preview Lab → · Contrast checker → · Palette generator →