#315EA3#315EA3

#315EA3 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.6% C 0.122 H 258.7°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#315EA3
RGB	rgb(49, 94, 163)
HSL	hsl(216, 54%, 42%)
HSV	hsv(216, 70%, 64%)
CMYK	cmyk(69.9%, 42.3%, 0%, 36.1%)
CIE-LAB	lab(40.08, 8.24, -41.85)
CIE-LCH	lch(40.08, 42.66, 281.14°)
OKLab	oklab(48.59% -0.0238 -0.1195)
OKLCH	oklch(48.59% 0.122 258.7)
XYZ	xyz(11.8778, 11.3015, 36.1987)
Luminance	0.1130 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315EA3 #A37631

analogous

#3197A3 #315EA3 #3D31A3

triadic

#315EA3 #A3315E #5EA331

tetradic

#315EA3 #A33197 #A37631 #31A33D

square

#315EA3 #A33197 #A37631 #31A33D

split-complementary

#315EA3 #A33D31 #97A331

monochromatic

#152845 #234374 #315EA3 #497BC8 #789DD6

Accessibility & contrast

On white

6.44

#315EA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#315EA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315EA3

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315EA3	#FFFFFF	#000000	##FFFFFF
##315EA3	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)

#3E64A6

Deuteranopia (green-blind)

#2B5AA2

Tritanopia (blue-blind)

#006E78

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #315ea3;
/* rgb */ color: rgb(49, 94, 163);
/* oklch */ color: oklch(48.6% 0.122 258.7);

Tailwind

colors: {
  custom: {
    50: '#778bbf',
    500: '#315ea3',
    950: '#000000',
  },
}

SCSS

$custom: #315ea3;
$custom-light: #778bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#315ea3",
  "rgb": {
    "r": 49,
    "g": 94,
    "b": 163
  },
  "hsl": {
    "h": 216.316,
    "s": 53.774,
    "l": 41.569
  },
  "oklch": {
    "l": 0.48588,
    "c": 0.12181,
    "h": 258.7
  },
  "luminance": 0.11303
}

Semantic roles & 50–950 ramp

primary

#315EA3

secondary

#BFA071

accent

#A34BDD

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #315EA3

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

Preview Lab → · Contrast checker → · Palette generator →