#315BAB#315BAB

#315BAB is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.5% C 0.137 H 261.8°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#315BAB
RGB	rgb(49, 91, 171)
HSL	hsl(219, 55%, 43%)
HSV	hsv(219, 71%, 67%)
CMYK	cmyk(71.3%, 46.8%, 0%, 32.9%)
CIE-LAB	lab(39.70, 13.18, -47.20)
CIE-LCH	lch(39.70, 49.01, 285.60°)
OKLab	oklab(48.46% -0.0194 -0.1352)
OKLCH	oklch(48.46% 0.137 261.8)
XYZ	xyz(12.3558, 11.0741, 40.0065)
Luminance	0.1108 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315BAB #AB8131

analogous

#3198AB #315BAB #4431AB

triadic

#315BAB #AB315B #5BAB31

tetradic

#315BAB #AB3198 #AB8131 #31AB44

square

#315BAB #AB3198 #AB8131 #31AB44

split-complementary

#315BAB #AB4431 #98AB31

monochromatic

#16284C #23427B #315BAB #4D79CC #7D9DDA

Accessibility & contrast

On white

6.53

#315BAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#315BAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315BAB

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315BAB	#FFFFFF	#000000	##FFFFFF
##315BAB	1.00	6.53	3.22	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3264AE

Deuteranopia (green-blind)

#1758A9

Tritanopia (blue-blind)

#006E7A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #315bab;
/* rgb */ color: rgb(49, 91, 171);
/* oklch */ color: oklch(48.5% 0.137 261.8);

Tailwind

colors: {
  custom: {
    50: '#7888c4',
    500: '#315bab',
    950: '#000000',
  },
}

SCSS

$custom: #315bab;
$custom-light: #7888c4;
$custom-dark: #000000;

JSON

{
  "hex": "#315bab",
  "rgb": {
    "r": 49,
    "g": 91,
    "b": 171
  },
  "hsl": {
    "h": 219.344,
    "s": 55.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.48455,
    "c": 0.13662,
    "h": 261.8
  },
  "luminance": 0.11075
}

Semantic roles & 50–950 ramp

primary

#315BAB

secondary

#C2A875

accent

#AB49DF

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #315BAB

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

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