#2337A0#2337A0

#2337A0 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.5% C 0.170 H 268.6°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#2337A0
RGB	rgb(35, 55, 160)
HSL	hsl(230, 64%, 38%)
HSV	hsv(230, 78%, 63%)
CMYK	cmyk(78.1%, 65.6%, 0%, 37.3%)
CIE-LAB	lab(28.45, 31.14, -58.91)
CIE-LCH	lch(28.45, 66.63, 297.86°)
OKLab	oklab(39.55% -0.0042 -0.1704)
OKLCH	oklch(39.55% 0.17 268.6)
XYZ	xyz(8.4023, 5.6268, 33.8941)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2337A0 #A08C23

analogous

#2375A0 #2337A0 #4D23A0

triadic

#2337A0 #A02337 #37A023

tetradic

#2337A0 #A02375 #A08C23 #23A04D

square

#2337A0 #A02375 #A08C23 #23A04D

split-complementary

#2337A0 #A04D23 #75A023

monochromatic

#0D143C #18266E #2337A0 #2F49D1 #6175DC

Accessibility & contrast

On white

9.88

#2337A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2337A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2337A0

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2337A0	#FFFFFF	#000000	##FFFFFF
##2337A0	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A3

Deuteranopia (green-blind)

#003D9E

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2337a0;
/* rgb */ color: rgb(35, 55, 160);
/* oklch */ color: oklch(39.5% 0.170 268.6);

Tailwind

colors: {
  custom: {
    50: '#736dbd',
    500: '#2337a0',
    950: '#000000',
  },
}

SCSS

$custom: #2337a0;
$custom-light: #736dbd;
$custom-dark: #000000;

JSON

{
  "hex": "#2337a0",
  "rgb": {
    "r": 35,
    "g": 55,
    "b": 160
  },
  "hsl": {
    "h": 230.4,
    "s": 64.103,
    "l": 38.235
  },
  "oklch": {
    "l": 0.39547,
    "c": 0.17048,
    "h": 268.6
  },
  "luminance": 0.05628
}

Semantic roles & 50–950 ramp

primary

#2337A0

secondary

#C1B15D

accent

#CC41E7

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #2337A0

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

Preview Lab → · Contrast checker → · Palette generator →