#37488E#37488E

#37488E is a dark, moderate blue. Relative luminance 0.074; OKLCH L 42.6% C 0.117 H 270.5°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#37488E
RGB	rgb(55, 72, 142)
HSL	hsl(228, 44%, 39%)
HSV	hsv(228, 61%, 56%)
CMYK	cmyk(61.3%, 49.3%, 0%, 44.3%)
CIE-LAB	lab(32.70, 16.06, -40.99)
CIE-LCH	lch(32.70, 44.02, 291.40°)
OKLab	oklab(42.58% 0.001 -0.1171)
OKLCH	oklch(42.58% 0.117 270.5)
XYZ	xyz(8.7738, 7.3992, 26.5518)
Luminance	0.0740 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37488E #8E7D37

analogous

#37738E #37488E #51378E

triadic

#37488E #8E3748 #488E37

tetradic

#37488E #8E3773 #8E7D37 #378E51

square

#37488E #8E3773 #8E7D37 #378E51

split-complementary

#37488E #8E5137 #738E37

monochromatic

#151B36 #263262 #37488E #495FB9 #7686CA

Accessibility & contrast

On white

8.47

#37488E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#37488E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37488E

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37488E	#FFFFFF	#000000	##FFFFFF
##37488E	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#255191

Deuteranopia (green-blind)

#16498D

Tritanopia (blue-blind)

#005864

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #37488e;
/* rgb */ color: rgb(55, 72, 142);
/* oklch */ color: oklch(42.6% 0.117 270.5);

Tailwind

colors: {
  custom: {
    50: '#767aaf',
    500: '#37488e',
    950: '#000000',
  },
}

SCSS

$custom: #37488e;
$custom-light: #767aaf;
$custom-dark: #000000;

JSON

{
  "hex": "#37488e",
  "rgb": {
    "r": 55,
    "g": 72,
    "b": 142
  },
  "hsl": {
    "h": 228.276,
    "s": 44.162,
    "l": 38.627
  },
  "oklch": {
    "l": 0.42576,
    "c": 0.11713,
    "h": 270.5
  },
  "luminance": 0.074
}

Semantic roles & 50–950 ramp

primary

#37488E

secondary

#B3A56E

accent

#BB54D4

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #37488E

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

Preview Lab → · Contrast checker → · Palette generator →