#374DA5#374DA5

#374DA5 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.3% C 0.144 H 269.3°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#374DA5
RGB	rgb(55, 77, 165)
HSL	hsl(228, 50%, 43%)
HSV	hsv(228, 67%, 65%)
CMYK	cmyk(66.7%, 53.3%, 0%, 35.3%)
CIE-LAB	lab(35.67, 21.10, -50.13)
CIE-LCH	lch(35.67, 54.39, 292.83°)
OKLab	oklab(45.33% -0.0017 -0.1439)
OKLCH	oklch(45.33% 0.144 269.3)
XYZ	xyz(11.0186, 8.8356, 36.7148)
Luminance	0.0884 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374DA5 #A58F37

analogous

#3784A5 #374DA5 #5837A5

triadic

#374DA5 #A5374D #4DA537

tetradic

#374DA5 #A53784 #A58F37 #37A558

square

#374DA5 #A53784 #A58F37 #37A558

split-complementary

#374DA5 #A55837 #84A537

monochromatic

#182249 #283877 #374DA5 #536AC6 #8192D5

Accessibility & contrast

On white

7.59

#374DA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#374DA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374DA5

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374DA5	#FFFFFF	#000000	##FFFFFF
##374DA5	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1459A8

Deuteranopia (green-blind)

#004FA3

Tritanopia (blue-blind)

#006271

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #374da5;
/* rgb */ color: rgb(55, 77, 165);
/* oklch */ color: oklch(45.3% 0.144 269.3);

Tailwind

colors: {
  custom: {
    50: '#7a7ec0',
    500: '#374da5',
    950: '#000000',
  },
}

SCSS

$custom: #374da5;
$custom-light: #7a7ec0;
$custom-dark: #000000;

JSON

{
  "hex": "#374da5",
  "rgb": {
    "r": 55,
    "g": 77,
    "b": 165
  },
  "hsl": {
    "h": 228,
    "s": 50,
    "l": 43.137
  },
  "oklch": {
    "l": 0.45327,
    "c": 0.14396,
    "h": 269.3
  },
  "luminance": 0.08837
}

Semantic roles & 50–950 ramp

primary

#374DA5

secondary

#BFB179

accent

#BE4EDA

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #374DA5

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

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