#2D279B#2D279B

#2D279B is a dark, vivid blue. Relative luminance 0.044; OKLCH L 37.0% C 0.179 H 275.4°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#2D279B
RGB	rgb(45, 39, 155)
HSL	hsl(243, 60%, 38%)
HSV	hsv(243, 75%, 61%)
CMYK	cmyk(71%, 74.8%, 0%, 39.2%)
CIE-LAB	lab(24.87, 40.38, -61.72)
CIE-LCH	lch(24.87, 73.76, 303.19°)
OKLab	oklab(36.97% 0.0168 -0.1784)
OKLCH	oklch(36.97% 0.179 275.4)
XYZ	xyz(7.7222, 4.3748, 31.4414)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D279B #959B27

analogous

#275B9B #2D279B #67279B

triadic

#2D279B #9B2D27 #279B2D

tetradic

#2D279B #9B275B #959B27 #279B67

square

#2D279B #9B275B #959B27 #279B67

split-complementary

#2D279B #9B6727 #5B9B27

monochromatic

#110E39 #1F1B6A #2D279B #3B33CC #6A64D8

Accessibility & contrast

On white

11.20

#2D279B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#2D279B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D279B

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D279B	#FFFFFF	#000000	##FFFFFF
##2D279B	1.00	11.20	1.88	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00409E

Deuteranopia (green-blind)

#003699

Tritanopia (blue-blind)

#00485F

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2d279b;
/* rgb */ color: rgb(45, 39, 155);
/* oklch */ color: oklch(37.0% 0.179 275.4);

Tailwind

colors: {
  custom: {
    50: '#7763ba',
    500: '#2d279b',
    950: '#000000',
  },
}

SCSS

$custom: #2d279b;
$custom-light: #7763ba;
$custom-dark: #000000;

JSON

{
  "hex": "#2d279b",
  "rgb": {
    "r": 45,
    "g": 39,
    "b": 155
  },
  "hsl": {
    "h": 243.103,
    "s": 59.794,
    "l": 38.039
  },
  "oklch": {
    "l": 0.36969,
    "c": 0.17923,
    "h": 275.4
  },
  "luminance": 0.04375
}

Semantic roles & 50–950 ramp

primary

#2D279B

secondary

#B9BE60

accent

#E345DB

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2D279B

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

Preview Lab → · Contrast checker → · Palette generator →