#315CB4#315CB4

#315CB4 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.3% C 0.148 H 262.7°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#315CB4
RGB	rgb(49, 92, 180)
HSL	hsl(220, 57%, 45%)
HSV	hsv(220, 73%, 71%)
CMYK	cmyk(72.8%, 48.9%, 0%, 29.4%)
CIE-LAB	lab(40.58, 15.91, -51.11)
CIE-LCH	lch(40.58, 53.53, 287.29°)
OKLab	oklab(49.31% -0.0189 -0.1467)
OKLCH	oklch(49.31% 0.148 262.7)
XYZ	xyz(13.3291, 11.6011, 44.7079)
Luminance	0.1160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315CB4 #B48931

analogous

#319EB4 #315CB4 #4731B4

triadic

#315CB4 #B4315C #5CB431

tetradic

#315CB4 #B4319E #B48931 #31B447

square

#315CB4 #B4319E #B48931 #31B447

split-complementary

#315CB4 #B44731 #9EB431

monochromatic

#172B54 #244384 #315CB4 #527CD0 #82A0DD

Accessibility & contrast

On white

6.32

#315CB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#315CB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315CB4

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315CB4	#FFFFFF	#000000	##FFFFFF
##315CB4	1.00	6.32	3.32	6.32
#FFFFFF	6.32	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B66B7

Deuteranopia (green-blind)

#005AB2

Tritanopia (blue-blind)

#00717F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #315cb4;
/* rgb */ color: rgb(49, 92, 180);
/* oklch */ color: oklch(49.3% 0.148 262.7);

Tailwind

colors: {
  custom: {
    50: '#7a89cb',
    500: '#315cb4',
    950: '#000000',
  },
}

SCSS

$custom: #315cb4;
$custom-light: #7a89cb;
$custom-dark: #000000;

JSON

{
  "hex": "#315cb4",
  "rgb": {
    "r": 49,
    "g": 92,
    "b": 180
  },
  "hsl": {
    "h": 220.305,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.4931,
    "c": 0.14792,
    "h": 262.7
  },
  "luminance": 0.11603
}

Semantic roles & 50–950 ramp

primary

#315CB4

secondary

#C6AD7B

accent

#AE47E0

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #315CB4

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

Preview Lab → · Contrast checker → · Palette generator →