#2A37A0#2A37A0

#2A37A0 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.9% C 0.169 H 270.9°. Best body text is #FFFFFF at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#2A37A0
RGB	rgb(42, 55, 160)
HSL	hsl(233, 58%, 40%)
HSV	hsv(233, 74%, 63%)
CMYK	cmyk(73.8%, 65.6%, 0%, 37.3%)
CIE-LAB	lab(28.80, 31.91, -58.31)
CIE-LCH	lch(28.80, 66.47, 298.69°)
OKLab	oklab(39.9% 0.0027 -0.1685)
OKLCH	oklch(39.9% 0.169 270.9)
XYZ	xyz(8.6640, 5.7618, 33.9064)
Luminance	0.0576 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A37A0 #A0932A

analogous

#2A72A0 #2A37A0 #582AA0

triadic

#2A37A0 #A02A37 #37A02A

tetradic

#2A37A0 #A02A72 #A0932A #2AA058

square

#2A37A0 #A02A72 #A0932A #2AA058

split-complementary

#2A37A0 #A0582A #72A02A

monochromatic

#11163F #1D2670 #2A37A0 #3C4BCC #6C78D8

Accessibility & contrast

On white

9.76

#2A37A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#2A37A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A37A0

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A37A0	#FFFFFF	#000000	##FFFFFF
##2A37A0	1.00	9.76	2.15	9.76
#FFFFFF	9.76	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA3

Deuteranopia (green-blind)

#003E9E

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2a37a0;
/* rgb */ color: rgb(42, 55, 160);
/* oklch */ color: oklch(39.9% 0.169 270.9);

Tailwind

colors: {
  custom: {
    50: '#756ebd',
    500: '#2a37a0',
    950: '#000000',
  },
}

SCSS

$custom: #2a37a0;
$custom-light: #756ebd;
$custom-dark: #000000;

JSON

{
  "hex": "#2a37a0",
  "rgb": {
    "r": 42,
    "g": 55,
    "b": 160
  },
  "hsl": {
    "h": 233.39,
    "s": 58.416,
    "l": 39.608
  },
  "oklch": {
    "l": 0.39902,
    "c": 0.16857,
    "h": 270.9
  },
  "luminance": 0.05763
}

Semantic roles & 50–950 ramp

primary

#2A37A0

secondary

#BFB567

accent

#D146E2

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2A37A0

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

Preview Lab → · Contrast checker → · Palette generator →