#37507B#37507B

#37507B is a dark, moderate blue. Relative luminance 0.080; OKLCH L 43.2% C 0.078 H 260.7°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#37507B
RGB	rgb(55, 80, 123)
HSL	hsl(218, 38%, 35%)
HSV	hsv(218, 55%, 48%)
CMYK	cmyk(55.3%, 35%, 0%, 51.8%)
CIE-LAB	lab(33.94, 4.03, -27.31)
CIE-LCH	lch(33.94, 27.60, 278.40°)
OKLab	oklab(43.17% -0.0125 -0.077)
OKLCH	oklch(43.17% 0.078 260.7)
XYZ	xyz(8.0181, 7.9790, 19.8526)
Luminance	0.0798 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37507B #7B6237

analogous

#37727B #37507B #40377B

triadic

#37507B #7B3750 #507B37

tetradic

#37507B #7B3772 #7B6237 #377B40

square

#37507B #7B3772 #7B6237 #377B40

split-complementary

#37507B #7B4037 #727B37

monochromatic

#111926 #243451 #37507B #4A6CA5 #6E8CBE

Accessibility & contrast

On white

8.09

#37507B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#37507B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37507B

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37507B	#FFFFFF	#000000	##FFFFFF
##37507B	1.00	8.09	2.60	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F537D

Deuteranopia (green-blind)

#374D7A

Tritanopia (blue-blind)

#135960

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #37507b;
/* rgb */ color: rgb(55, 80, 123);
/* oklch */ color: oklch(43.2% 0.078 260.7);

Tailwind

colors: {
  custom: {
    50: '#7380a1',
    500: '#37507b',
    950: '#000000',
  },
}

SCSS

$custom: #37507b;
$custom-light: #7380a1;
$custom-dark: #000000;

JSON

{
  "hex": "#37507b",
  "rgb": {
    "r": 55,
    "g": 80,
    "b": 123
  },
  "hsl": {
    "h": 217.941,
    "s": 38.202,
    "l": 34.902
  },
  "oklch": {
    "l": 0.43167,
    "c": 0.078,
    "h": 260.7
  },
  "luminance": 0.0798
}

Semantic roles & 50–950 ramp

primary

#37507B

secondary

#A78F67

accent

#A35ACE

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#080A0F

muted

#7B7C7E

Preview Lab

Preview with #37507B

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

Preview Lab → · Contrast checker → · Palette generator →