#10357D#10357D

#10357D is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.2% C 0.129 H 261.9°. Best body text is #FFFFFF at 11.49:1 contrast (WCAG AA passes).

Color values

HEX	#10357D
RGB	rgb(16, 53, 125)
HSL	hsl(220, 77%, 28%)
HSV	hsv(220, 87%, 49%)
CMYK	cmyk(87.2%, 57.6%, 0%, 51%)
CIE-LAB	lab(24.12, 16.74, -44.38)
CIE-LCH	lch(24.12, 47.43, 290.66°)
OKLab	oklab(35.17% -0.0183 -0.1282)
OKLCH	oklch(35.17% 0.129 261.9)
XYZ	xyz(5.1871, 4.1364, 19.9231)
Luminance	0.0414 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10357D #7D5810

analogous

#106B7D #10357D #21107D

triadic

#10357D #7D1035 #357D10

tetradic

#10357D #7D106B #7D5810 #107D21

square

#10357D #7D106B #7D5810 #107D21

split-complementary

#10357D #7D2110 #6B7D10

monochromatic

#030C1B #091E47 #10357D #174CB3 #2465E3

Accessibility & contrast

On white

11.49

#10357D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#10357D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10357D

11.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10357D	#FFFFFF	#000000	##FFFFFF
##10357D	1.00	11.49	1.83	11.49
#FFFFFF	11.49	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7F

Deuteranopia (green-blind)

#00357C

Tritanopia (blue-blind)

#004753

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #10357d;
/* rgb */ color: rgb(16, 53, 125);
/* oklch */ color: oklch(35.2% 0.129 261.9);

Tailwind

colors: {
  custom: {
    50: '#646ba3',
    500: '#10357d',
    950: '#000000',
  },
}

SCSS

$custom: #10357d;
$custom-light: #646ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#10357d",
  "rgb": {
    "r": 16,
    "g": 53,
    "b": 125
  },
  "hsl": {
    "h": 219.633,
    "s": 77.305,
    "l": 27.647
  },
  "oklch": {
    "l": 0.35167,
    "c": 0.12948,
    "h": 261.9
  },
  "luminance": 0.04137
}

Semantic roles & 50–950 ramp

primary

#10357D

secondary

#B38935

accent

#B334F4

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#06060F

muted

#7A7A7F

Preview Lab

Preview with #10357D

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

Preview Lab → · Contrast checker → · Palette generator →