#315EA8#315EA8

#315EA8 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 48.9% C 0.129 H 259.8°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#315EA8
RGB	rgb(49, 94, 168)
HSL	hsl(217, 55%, 43%)
HSV	hsv(217, 71%, 66%)
CMYK	cmyk(70.8%, 44%, 0%, 34.1%)
CIE-LAB	lab(40.38, 10.11, -44.34)
CIE-LCH	lch(40.38, 45.48, 282.84°)
OKLab	oklab(48.92% -0.0227 -0.1268)
OKLCH	oklch(48.92% 0.129 259.8)
XYZ	xyz(12.3347, 11.4842, 38.6048)
Luminance	0.1149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315EA8 #A87B31

analogous

#319AA8 #315EA8 #3F31A8

triadic

#315EA8 #A8315E #5EA831

tetradic

#315EA8 #A8319A #A87B31 #31A83F

square

#315EA8 #A8319A #A87B31 #31A83F

split-complementary

#315EA8 #A83F31 #9AA831

monochromatic

#152949 #234379 #315EA8 #4C7CCB #7B9ED8

Accessibility & contrast

On white

6.37

#315EA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#315EA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315EA8

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315EA8	#FFFFFF	#000000	##FFFFFF
##315EA8	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A65AB

Deuteranopia (green-blind)

#255AA6

Tritanopia (blue-blind)

#006F7B

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #315ea8;
/* rgb */ color: rgb(49, 94, 168);
/* oklch */ color: oklch(48.9% 0.129 259.8);

Tailwind

colors: {
  custom: {
    50: '#788bc2',
    500: '#315ea8',
    950: '#000000',
  },
}

SCSS

$custom: #315ea8;
$custom-light: #788bc2;
$custom-dark: #000000;

JSON

{
  "hex": "#315ea8",
  "rgb": {
    "r": 49,
    "g": 94,
    "b": 168
  },
  "hsl": {
    "h": 217.311,
    "s": 54.839,
    "l": 42.549
  },
  "oklch": {
    "l": 0.48918,
    "c": 0.1288,
    "h": 259.8
  },
  "luminance": 0.11486
}

Semantic roles & 50–950 ramp

primary

#315EA8

secondary

#C1A474

accent

#A64ADE

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #315EA8

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

Preview Lab → · Contrast checker → · Palette generator →