#315CB9#315CB9

#315CB9 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.7% C 0.155 H 263.2°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#315CB9
RGB	rgb(49, 92, 185)
HSL	hsl(221, 58%, 46%)
HSV	hsv(221, 74%, 73%)
CMYK	cmyk(73.5%, 50.3%, 0%, 27.5%)
CIE-LAB	lab(40.91, 17.79, -53.50)
CIE-LCH	lch(40.91, 56.38, 288.40°)
OKLab	oklab(49.67% -0.0182 -0.1537)
OKLCH	oklch(49.67% 0.155 263.2)
XYZ	xyz(13.8476, 11.8085, 47.4390)
Luminance	0.1181 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315CB9 #B98E31

analogous

#31A0B9 #315CB9 #4A31B9

triadic

#315CB9 #B9315C #5CB931

tetradic

#315CB9 #B931A0 #B98E31 #31B94A

square

#315CB9 #B931A0 #B98E31 #31B94A

split-complementary

#315CB9 #B94A31 #A0B931

monochromatic

#172C58 #244489 #315CB9 #557DD2 #86A2DF

Accessibility & contrast

On white

6.25

#315CB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#315CB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315CB9

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315CB9	#FFFFFF	#000000	##FFFFFF
##315CB9	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2467BC

Deuteranopia (green-blind)

#005BB7

Tritanopia (blue-blind)

#007282

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #315cb9;
/* rgb */ color: rgb(49, 92, 185);
/* oklch */ color: oklch(49.7% 0.155 263.2);

Tailwind

colors: {
  custom: {
    50: '#7b89cf',
    500: '#315cb9',
    950: '#000000',
  },
}

SCSS

$custom: #315cb9;
$custom-light: #7b89cf;
$custom-dark: #000000;

JSON

{
  "hex": "#315cb9",
  "rgb": {
    "r": 49,
    "g": 92,
    "b": 185
  },
  "hsl": {
    "h": 221.029,
    "s": 58.12,
    "l": 45.882
  },
  "oklch": {
    "l": 0.49673,
    "c": 0.15483,
    "h": 263.2
  },
  "luminance": 0.1181
}

Semantic roles & 50–950 ramp

primary

#315CB9

secondary

#C8B17D

accent

#B046E1

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #315CB9

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

Preview Lab → · Contrast checker → · Palette generator →