#374FB0#374FB0

#374FB0 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.6% C 0.157 H 269.0°. Best body text is #FFFFFF at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#374FB0
RGB	rgb(55, 79, 176)
HSL	hsl(228, 52%, 45%)
HSV	hsv(228, 69%, 69%)
CMYK	cmyk(68.8%, 55.1%, 0%, 31%)
CIE-LAB	lab(37.00, 23.81, -54.51)
CIE-LCH	lch(37.00, 59.49, 293.59°)
OKLab	oklab(46.58% -0.0027 -0.1568)
OKLCH	oklch(46.58% 0.157 269)
XYZ	xyz(12.2053, 9.5376, 42.2636)
Luminance	0.0954 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374FB0 #B09837

analogous

#378CB0 #374FB0 #5B37B0

triadic

#374FB0 #B0374F #4FB037

tetradic

#374FB0 #B0378C #B09837 #37B05B

square

#374FB0 #B0378C #B09837 #37B05B

split-complementary

#374FB0 #B05B37 #8CB037

monochromatic

#1A2553 #283A81 #374FB0 #5970CB #8898DA

Accessibility & contrast

On white

7.22

#374FB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#374FB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374FB0

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374FB0	#FFFFFF	#000000	##FFFFFF
##374FB0	1.00	7.22	2.91	7.22
#FFFFFF	7.22	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB3

Deuteranopia (green-blind)

#0052AE

Tritanopia (blue-blind)

#006678

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #374fb0;
/* rgb */ color: rgb(55, 79, 176);
/* oklch */ color: oklch(46.6% 0.157 269.0);

Tailwind

colors: {
  custom: {
    50: '#7c80c8',
    500: '#374fb0',
    950: '#000000',
  },
}

SCSS

$custom: #374fb0;
$custom-light: #7c80c8;
$custom-dark: #000000;

JSON

{
  "hex": "#374fb0",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 176
  },
  "hsl": {
    "h": 228.099,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.46584,
    "c": 0.15685,
    "h": 269
  },
  "luminance": 0.09539
}

Semantic roles & 50–950 ramp

primary

#374FB0

secondary

#C4B67F

accent

#BF4CDC

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #374FB0

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

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