#315CBB#315CBB

#315CBB is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.8% C 0.158 H 263.4°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#315CBB
RGB	rgb(49, 92, 187)
HSL	hsl(221, 58%, 46%)
HSV	hsv(221, 74%, 73%)
CMYK	cmyk(73.8%, 50.8%, 0%, 26.7%)
CIE-LAB	lab(41.05, 18.55, -54.45)
CIE-LCH	lch(41.05, 57.52, 288.81°)
OKLab	oklab(49.82% -0.018 -0.1565)
OKLCH	oklch(49.82% 0.158 263.4)
XYZ	xyz(14.0602, 11.8936, 48.5588)
Luminance	0.1190 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315CBB #BB9031

analogous

#31A1BB #315CBB #4B31BB

triadic

#315CBB #BB315C #5CBB31

tetradic

#315CBB #BB31A1 #BB9031 #31BB4B

square

#315CBB #BB31A1 #BB9031 #31BB4B

split-complementary

#315CBB #BB4B31 #A1BB31

monochromatic

#182C5A #24448B #315CBB #567DD3 #87A3E0

Accessibility & contrast

On white

6.21

#315CBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#315CBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315CBB

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315CBB	#FFFFFF	#000000	##FFFFFF
##315CBB	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2167BE

Deuteranopia (green-blind)

#005BB9

Tritanopia (blue-blind)

#007383

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #315cbb;
/* rgb */ color: rgb(49, 92, 187);
/* oklch */ color: oklch(49.8% 0.158 263.4);

Tailwind

colors: {
  custom: {
    50: '#7c89d0',
    500: '#315cbb',
    950: '#000000',
  },
}

SCSS

$custom: #315cbb;
$custom-light: #7c89d0;
$custom-dark: #000000;

JSON

{
  "hex": "#315cbb",
  "rgb": {
    "r": 49,
    "g": 92,
    "b": 187
  },
  "hsl": {
    "h": 221.304,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.4982,
    "c": 0.15757,
    "h": 263.4
  },
  "luminance": 0.11895
}

Semantic roles & 50–950 ramp

primary

#315CBB

secondary

#C9B27F

accent

#B146E2

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #315CBB

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

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