#37407B#37407B

#37407B is a dark, moderate blue. Relative luminance 0.059; OKLCH L 39.5% C 0.099 H 274.4°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#37407B
RGB	rgb(55, 64, 123)
HSL	hsl(232, 38%, 35%)
HSV	hsv(232, 55%, 48%)
CMYK	cmyk(55.3%, 48%, 0%, 51.8%)
CIE-LAB	lab(29.18, 14.67, -34.85)
CIE-LCH	lch(29.18, 37.81, 292.83°)
OKLab	oklab(39.5% 0.0077 -0.0992)
OKLCH	oklch(39.5% 0.099 274.4)
XYZ	xyz(6.9830, 5.9086, 19.5076)
Luminance	0.0591 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37407B #7B7237

analogous

#37627B #37407B #50377B

triadic

#37407B #7B3740 #407B37

tetradic

#37407B #7B3762 #7B7237 #377B50

square

#37407B #7B3762 #7B7237 #377B50

split-complementary

#37407B #7B5037 #627B37

monochromatic

#111426 #242A51 #37407B #4A56A5 #6E79BE

Accessibility & contrast

On white

9.63

#37407B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#37407B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37407B

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37407B	#FFFFFF	#000000	##FFFFFF
##37407B	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26487D

Deuteranopia (green-blind)

#1E427A

Tritanopia (blue-blind)

#174D57

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #37407b;
/* rgb */ color: rgb(55, 64, 123);
/* oklch */ color: oklch(39.5% 0.099 274.4);

Tailwind

colors: {
  custom: {
    50: '#7374a1',
    500: '#37407b',
    950: '#000000',
  },
}

SCSS

$custom: #37407b;
$custom-light: #7374a1;
$custom-dark: #000000;

JSON

{
  "hex": "#37407b",
  "rgb": {
    "r": 55,
    "g": 64,
    "b": 123
  },
  "hsl": {
    "h": 232.059,
    "s": 38.202,
    "l": 34.902
  },
  "oklch": {
    "l": 0.39503,
    "c": 0.09947,
    "h": 274.4
  },
  "luminance": 0.05909
}

Semantic roles & 50–950 ramp

primary

#37407B

secondary

#A79F67

accent

#BF5ACE

background

#F7F7FA

surface

#EDEDF3

border

#C8C8CD

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #37407B

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

Preview Lab → · Contrast checker → · Palette generator →