#315D9D#315D9D

#315D9D is a mid, moderate blue. Relative luminance 0.109; OKLCH L 48.0% C 0.115 H 257.9°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#315D9D
RGB	rgb(49, 93, 157)
HSL	hsl(216, 52%, 40%)
HSV	hsv(216, 69%, 62%)
CMYK	cmyk(68.8%, 40.8%, 0%, 38.4%)
CIE-LAB	lab(39.44, 6.65, -39.31)
CIE-LCH	lch(39.44, 39.87, 279.60°)
OKLab	oklab(47.97% -0.0241 -0.112)
OKLCH	oklch(47.97% 0.115 257.9)
XYZ	xyz(11.2646, 10.9148, 33.4049)
Luminance	0.1092 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315D9D #9D7131

analogous

#31939D #315D9D #3B319D

triadic

#315D9D #9D315D #5D9D31

tetradic

#315D9D #9D3193 #9D7131 #319D3B

square

#315D9D #9D3193 #9D7131 #319D3B

split-complementary

#315D9D #9D3B31 #939D31

monochromatic

#142640 #22416E #315D9D #467AC5 #759BD4

Accessibility & contrast

On white

6.60

#315D9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#315D9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315D9D

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315D9D	#FFFFFF	#000000	##FFFFFF
##315D9D	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4062A0

Deuteranopia (green-blind)

#2F589C

Tritanopia (blue-blind)

#006C75

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #315d9d;
/* rgb */ color: rgb(49, 93, 157);
/* oklch */ color: oklch(48.0% 0.115 257.9);

Tailwind

colors: {
  custom: {
    50: '#758aba',
    500: '#315d9d',
    950: '#000000',
  },
}

SCSS

$custom: #315d9d;
$custom-light: #758aba;
$custom-dark: #000000;

JSON

{
  "hex": "#315d9d",
  "rgb": {
    "r": 49,
    "g": 93,
    "b": 157
  },
  "hsl": {
    "h": 215.556,
    "s": 52.427,
    "l": 40.392
  },
  "oklch": {
    "l": 0.47972,
    "c": 0.11458,
    "h": 257.9
  },
  "luminance": 0.10916
}

Semantic roles & 50–950 ramp

primary

#315D9D

secondary

#BC9C6E

accent

#A14CDC

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #315D9D

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

Preview Lab → · Contrast checker → · Palette generator →