#2637A8#2637A8

#2637A8 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.5% C 0.180 H 269.4°. Best body text is #FFFFFF at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#2637A8
RGB	rgb(38, 55, 168)
HSL	hsl(232, 63%, 40%)
HSV	hsv(232, 77%, 66%)
CMYK	cmyk(77.4%, 67.3%, 0%, 34.1%)
CIE-LAB	lab(29.34, 34.41, -62.28)
CIE-LCH	lch(29.34, 71.15, 298.92°)
OKLab	oklab(40.46% -0.0019 -0.1802)
OKLCH	oklch(40.46% 0.18 269.4)
XYZ	xyz(9.2310, 5.9706, 37.7041)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2637A8 #A89726

analogous

#2678A8 #2637A8 #5626A8

triadic

#2637A8 #A82637 #37A826

tetradic

#2637A8 #A82678 #A89726 #26A856

square

#2637A8 #A82678 #A89726 #26A856

split-complementary

#2637A8 #A85626 #78A826

monochromatic

#0F1644 #1B2776 #2637A8 #394DD2 #6B7ADE

Accessibility & contrast

On white

9.57

#2637A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#2637A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2637A8

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2637A8	#FFFFFF	#000000	##FFFFFF
##2637A8	1.00	9.57	2.19	9.57
#FFFFFF	9.57	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BAC

Deuteranopia (green-blind)

#003FA6

Tritanopia (blue-blind)

#00556A

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2637a8;
/* rgb */ color: rgb(38, 55, 168);
/* oklch */ color: oklch(40.5% 0.180 269.4);

Tailwind

colors: {
  custom: {
    50: '#766ec3',
    500: '#2637a8',
    950: '#000000',
  },
}

SCSS

$custom: #2637a8;
$custom-light: #766ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#2637a8",
  "rgb": {
    "r": 38,
    "g": 55,
    "b": 168
  },
  "hsl": {
    "h": 232.154,
    "s": 63.107,
    "l": 40.392
  },
  "oklch": {
    "l": 0.40463,
    "c": 0.18024,
    "h": 269.4
  },
  "luminance": 0.05972
}

Semantic roles & 50–950 ramp

primary

#2637A8

secondary

#C4B866

accent

#D142E6

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2637A8

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

Preview Lab → · Contrast checker → · Palette generator →