#2937A3#2937A3

#2937A3 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.1% C 0.173 H 270.5°. Best body text is #FFFFFF at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#2937A3
RGB	rgb(41, 55, 163)
HSL	hsl(233, 60%, 40%)
HSV	hsv(233, 75%, 64%)
CMYK	cmyk(74.8%, 66.3%, 0%, 36.1%)
CIE-LAB	lab(29.02, 32.89, -59.77)
CIE-LCH	lch(29.02, 68.22, 298.82°)
OKLab	oklab(40.13% 0.0015 -0.1728)
OKLCH	oklch(40.13% 0.173 270.5)
XYZ	xyz(8.8892, 5.8472, 35.3034)
Luminance	0.0585 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2937A3 #A39529

analogous

#2974A3 #2937A3 #5829A3

triadic

#2937A3 #A32937 #37A329

tetradic

#2937A3 #A32974 #A39529 #29A358

square

#2937A3 #A32974 #A39529 #29A358

split-complementary

#2937A3 #A35829 #74A329

monochromatic

#101641 #1D2672 #2937A3 #3B4CCE #6C79DA

Accessibility & contrast

On white

9.68

#2937A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#2937A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2937A3

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2937A3	#FFFFFF	#000000	##FFFFFF
##2937A3	1.00	9.68	2.17	9.68
#FFFFFF	9.68	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA6

Deuteranopia (green-blind)

#003FA1

Tritanopia (blue-blind)

#005468

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2937a3;
/* rgb */ color: rgb(41, 55, 163);
/* oklch */ color: oklch(40.1% 0.173 270.5);

Tailwind

colors: {
  custom: {
    50: '#766ebf',
    500: '#2937a3',
    950: '#000000',
  },
}

SCSS

$custom: #2937a3;
$custom-light: #766ebf;
$custom-dark: #000000;

JSON

{
  "hex": "#2937a3",
  "rgb": {
    "r": 41,
    "g": 55,
    "b": 163
  },
  "hsl": {
    "h": 233.115,
    "s": 59.804,
    "l": 40
  },
  "oklch": {
    "l": 0.40132,
    "c": 0.17285,
    "h": 270.5
  },
  "luminance": 0.05848
}

Semantic roles & 50–950 ramp

primary

#2937A3

secondary

#C1B667

accent

#D145E3

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2937A3

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

Preview Lab → · Contrast checker → · Palette generator →