#2A37A5#2A37A5

#2A37A5 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.4% C 0.175 H 270.8°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#2A37A5
RGB	rgb(42, 55, 165)
HSL	hsl(234, 59%, 41%)
HSV	hsv(234, 75%, 65%)
CMYK	cmyk(74.5%, 66.7%, 0%, 35.3%)
CIE-LAB	lab(29.26, 33.73, -60.59)
CIE-LCH	lch(29.26, 69.34, 299.11°)
OKLab	oklab(40.38% 0.0024 -0.1752)
OKLCH	oklch(40.38% 0.175 270.8)
XYZ	xyz(9.1103, 5.9403, 36.2565)
Luminance	0.0594 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A37A5 #A5982A

analogous

#2A74A5 #2A37A5 #5B2AA5

triadic

#2A37A5 #A52A37 #37A52A

tetradic

#2A37A5 #A52A74 #A5982A #2AA55B

square

#2A37A5 #A52A74 #A5982A #2AA55B

split-complementary

#2A37A5 #A55B2A #74A52A

monochromatic

#111643 #1E2774 #2A37A5 #3E4DCE #6F7ADA

Accessibility & contrast

On white

9.60

#2A37A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#2A37A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A37A5

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A37A5	#FFFFFF	#000000	##FFFFFF
##2A37A5	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA8

Deuteranopia (green-blind)

#003FA3

Tritanopia (blue-blind)

#005469

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2a37a5;
/* rgb */ color: rgb(42, 55, 165);
/* oklch */ color: oklch(40.4% 0.175 270.8);

Tailwind

colors: {
  custom: {
    50: '#776ec1',
    500: '#2a37a5',
    950: '#000000',
  },
}

SCSS

$custom: #2a37a5;
$custom-light: #776ec1;
$custom-dark: #000000;

JSON

{
  "hex": "#2a37a5",
  "rgb": {
    "r": 42,
    "g": 55,
    "b": 165
  },
  "hsl": {
    "h": 233.659,
    "s": 59.42,
    "l": 40.588
  },
  "oklch": {
    "l": 0.40377,
    "c": 0.17522,
    "h": 270.8
  },
  "luminance": 0.05941
}

Semantic roles & 50–950 ramp

primary

#2A37A5

secondary

#C1B869

accent

#D245E3

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2A37A5

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

Preview Lab → · Contrast checker → · Palette generator →