#315A9D#315A9D

#315A9D is a mid, moderate blue. Relative luminance 0.104; OKLCH L 47.3% C 0.118 H 259.7°. Best body text is #FFFFFF at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#315A9D
RGB	rgb(49, 90, 157)
HSL	hsl(217, 52%, 40%)
HSV	hsv(217, 69%, 62%)
CMYK	cmyk(68.8%, 42.7%, 0%, 38.4%)
CIE-LAB	lab(38.55, 8.59, -40.73)
CIE-LCH	lch(38.55, 41.62, 281.91°)
OKLab	oklab(47.28% -0.0211 -0.1162)
OKLCH	oklch(47.28% 0.118 259.7)
XYZ	xyz(11.0064, 10.3985, 33.3188)
Luminance	0.1040 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315A9D #9D7431

analogous

#31909D #315A9D #3E319D

triadic

#315A9D #9D315A #5A9D31

tetradic

#315A9D #9D3190 #9D7431 #319D3E

square

#315A9D #9D3190 #9D7431 #319D3E

split-complementary

#315A9D #9D3E31 #909D31

monochromatic

#142540 #223F6E #315A9D #4676C5 #7599D4

Accessibility & contrast

On white

6.82

#315A9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#315A9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315A9D

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315A9D	#FFFFFF	#000000	##FFFFFF
##315A9D	1.00	6.82	3.08	6.82
#FFFFFF	6.82	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B60A0

Deuteranopia (green-blind)

#29569C

Tritanopia (blue-blind)

#006974

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #315a9d;
/* rgb */ color: rgb(49, 90, 157);
/* oklch */ color: oklch(47.3% 0.118 259.7);

Tailwind

colors: {
  custom: {
    50: '#7688ba',
    500: '#315a9d',
    950: '#000000',
  },
}

SCSS

$custom: #315a9d;
$custom-light: #7688ba;
$custom-dark: #000000;

JSON

{
  "hex": "#315a9d",
  "rgb": {
    "r": 49,
    "g": 90,
    "b": 157
  },
  "hsl": {
    "h": 217.222,
    "s": 52.427,
    "l": 40.392
  },
  "oklch": {
    "l": 0.47284,
    "c": 0.11811,
    "h": 259.7
  },
  "luminance": 0.104
}

Semantic roles & 50–950 ramp

primary

#315A9D

secondary

#BC9E6E

accent

#A54CDC

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #315A9D

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

Preview Lab → · Contrast checker → · Palette generator →