#374CA5#374CA5

#374CA5 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.1% C 0.145 H 269.7°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#374CA5
RGB	rgb(55, 76, 165)
HSL	hsl(229, 50%, 43%)
HSV	hsv(229, 67%, 65%)
CMYK	cmyk(66.7%, 53.9%, 0%, 35.3%)
CIE-LAB	lab(35.39, 21.76, -50.57)
CIE-LCH	lch(35.39, 55.05, 293.29°)
OKLab	oklab(45.12% -0.0007 -0.1452)
OKLCH	oklch(45.12% 0.145 269.7)
XYZ	xyz(10.9492, 8.6967, 36.6916)
Luminance	0.0870 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374CA5 #A59037

analogous

#3783A5 #374CA5 #5937A5

triadic

#374CA5 #A5374C #4CA537

tetradic

#374CA5 #A53783 #A59037 #37A559

square

#374CA5 #A53783 #A59037 #37A559

split-complementary

#374CA5 #A55937 #83A537

monochromatic

#182249 #283777 #374CA5 #5369C6 #8191D5

Accessibility & contrast

On white

7.67

#374CA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#374CA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374CA5

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374CA5	#FFFFFF	#000000	##FFFFFF
##374CA5	1.00	7.67	2.74	7.67
#FFFFFF	7.67	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F58A8

Deuteranopia (green-blind)

#004EA3

Tritanopia (blue-blind)

#006171

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #374ca5;
/* rgb */ color: rgb(55, 76, 165);
/* oklch */ color: oklch(45.1% 0.145 269.7);

Tailwind

colors: {
  custom: {
    50: '#7a7dc0',
    500: '#374ca5',
    950: '#000000',
  },
}

SCSS

$custom: #374ca5;
$custom-light: #7a7dc0;
$custom-dark: #000000;

JSON

{
  "hex": "#374ca5",
  "rgb": {
    "r": 55,
    "g": 76,
    "b": 165
  },
  "hsl": {
    "h": 228.545,
    "s": 50,
    "l": 43.137
  },
  "oklch": {
    "l": 0.45122,
    "c": 0.14525,
    "h": 269.7
  },
  "luminance": 0.08698
}

Semantic roles & 50–950 ramp

primary

#374CA5

secondary

#BFB179

accent

#BF4EDA

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #374CA5

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

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