#315DA7#315DA7

#315DA7 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.6% C 0.129 H 260.2°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#315DA7
RGB	rgb(49, 93, 167)
HSL	hsl(218, 55%, 42%)
HSV	hsv(218, 71%, 65%)
CMYK	cmyk(70.7%, 44.3%, 0%, 34.5%)
CIE-LAB	lab(40.03, 10.38, -44.31)
CIE-LCH	lch(40.03, 45.51, 283.18°)
OKLab	oklab(48.63% -0.022 -0.1267)
OKLCH	oklch(48.63% 0.129 260.2)
XYZ	xyz(12.1535, 11.2704, 38.0866)
Luminance	0.1127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315DA7 #A77B31

analogous

#3198A7 #315DA7 #4031A7

triadic

#315DA7 #A7315D #5DA731

tetradic

#315DA7 #A73198 #A77B31 #31A740

square

#315DA7 #A73198 #A77B31 #31A740

split-complementary

#315DA7 #A74031 #98A731

monochromatic

#152848 #234378 #315DA7 #4B7ACA #7A9DD8

Accessibility & contrast

On white

6.45

#315DA7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#315DA7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315DA7

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315DA7	#FFFFFF	#000000	##FFFFFF
##315DA7	1.00	6.45	3.25	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3964AA

Deuteranopia (green-blind)

#2459A5

Tritanopia (blue-blind)

#006E7A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #315da7;
/* rgb */ color: rgb(49, 93, 167);
/* oklch */ color: oklch(48.6% 0.129 260.2);

Tailwind

colors: {
  custom: {
    50: '#778ac1',
    500: '#315da7',
    950: '#000000',
  },
}

SCSS

$custom: #315da7;
$custom-light: #778ac1;
$custom-dark: #000000;

JSON

{
  "hex": "#315da7",
  "rgb": {
    "r": 49,
    "g": 93,
    "b": 167
  },
  "hsl": {
    "h": 217.627,
    "s": 54.63,
    "l": 42.353
  },
  "oklch": {
    "l": 0.48626,
    "c": 0.12859,
    "h": 260.2
  },
  "luminance": 0.11272
}

Semantic roles & 50–950 ramp

primary

#315DA7

secondary

#C1A473

accent

#A74ADE

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #315DA7

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

Preview Lab → · Contrast checker → · Palette generator →