#374E99#374E99

#374E99 is a dark, vivid blue. Relative luminance 0.086; OKLCH L 44.7% C 0.125 H 268.2°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#374E99
RGB	rgb(55, 78, 153)
HSL	hsl(226, 47%, 41%)
HSV	hsv(226, 64%, 60%)
CMYK	cmyk(64.1%, 49%, 0%, 40%)
CIE-LAB	lab(35.12, 16.06, -43.79)
CIE-LCH	lch(35.12, 46.64, 290.14°)
OKLab	oklab(44.65% -0.004 -0.1253)
OKLCH	oklch(44.65% 0.125 268.2)
XYZ	xyz(10.0477, 8.5600, 31.2536)
Luminance	0.0856 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374E99 #998237

analogous

#377F99 #374E99 #513799

triadic

#374E99 #99374E #4E9937

tetradic

#374E99 #99377F #998237 #379951

square

#374E99 #99377F #998237 #379951

split-complementary

#374E99 #995137 #7F9937

monochromatic

#17203F #27376C #374E99 #4E68BF #7B8FD0

Accessibility & contrast

On white

7.74

#374E99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#374E99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374E99

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374E99	#FFFFFF	#000000	##FFFFFF
##374E99	1.00	7.74	2.71	7.74
#FFFFFF	7.74	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27579C

Deuteranopia (green-blind)

#144E97

Tritanopia (blue-blind)

#005F6C

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #374e99;
/* rgb */ color: rgb(55, 78, 153);
/* oklch */ color: oklch(44.7% 0.125 268.2);

Tailwind

colors: {
  custom: {
    50: '#787fb7',
    500: '#374e99',
    950: '#000000',
  },
}

SCSS

$custom: #374e99;
$custom-light: #787fb7;
$custom-dark: #000000;

JSON

{
  "hex": "#374e99",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 153
  },
  "hsl": {
    "h": 225.918,
    "s": 47.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.44653,
    "c": 0.12534,
    "h": 268.2
  },
  "luminance": 0.08561
}

Semantic roles & 50–950 ramp

primary

#374E99

secondary

#B9A873

accent

#B751D7

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0A11

muted

#7C7C80

Preview Lab

Preview with #374E99

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

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