#315DA8#315DA8

#315DA8 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.7% C 0.130 H 260.4°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#315DA8
RGB	rgb(49, 93, 168)
HSL	hsl(218, 55%, 43%)
HSV	hsv(218, 71%, 66%)
CMYK	cmyk(70.8%, 44.6%, 0%, 34.1%)
CIE-LAB	lab(40.09, 10.75, -44.81)
CIE-LCH	lch(40.09, 46.08, 283.50°)
OKLab	oklab(48.69% -0.0218 -0.1282)
OKLCH	oklch(48.69% 0.13 260.4)
XYZ	xyz(12.2463, 11.3075, 38.5754)
Luminance	0.1131 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315DA8 #A87C31

analogous

#3199A8 #315DA8 #4031A8

triadic

#315DA8 #A8315D #5DA831

tetradic

#315DA8 #A83199 #A87C31 #31A840

square

#315DA8 #A83199 #A87C31 #31A840

split-complementary

#315DA8 #A84031 #99A831

monochromatic

#152949 #234379 #315DA8 #4C7BCB #7B9ED8

Accessibility & contrast

On white

6.44

#315DA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#315DA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315DA8

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315DA8	#FFFFFF	#000000	##FFFFFF
##315DA8	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3864AB

Deuteranopia (green-blind)

#2259A6

Tritanopia (blue-blind)

#006E7A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #315da8;
/* rgb */ color: rgb(49, 93, 168);
/* oklch */ color: oklch(48.7% 0.130 260.4);

Tailwind

colors: {
  custom: {
    50: '#788ac2',
    500: '#315da8',
    950: '#000000',
  },
}

SCSS

$custom: #315da8;
$custom-light: #788ac2;
$custom-dark: #000000;

JSON

{
  "hex": "#315da8",
  "rgb": {
    "r": 49,
    "g": 93,
    "b": 168
  },
  "hsl": {
    "h": 217.815,
    "s": 54.839,
    "l": 42.549
  },
  "oklch": {
    "l": 0.48693,
    "c": 0.13,
    "h": 260.4
  },
  "luminance": 0.11309
}

Semantic roles & 50–950 ramp

primary

#315DA8

secondary

#C1A474

accent

#A74ADE

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #315DA8

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

Preview Lab → · Contrast checker → · Palette generator →