#10347E#10347E

#10347E is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.0% C 0.132 H 262.4°. Best body text is #FFFFFF at 11.57:1 contrast (WCAG AA passes).

Color values

HEX	#10347E
RGB	rgb(16, 52, 126)
HSL	hsl(220, 77%, 28%)
HSV	hsv(220, 87%, 49%)
CMYK	cmyk(87.3%, 58.7%, 0%, 50.6%)
CIE-LAB	lab(23.91, 17.87, -45.35)
CIE-LCH	lch(23.91, 48.74, 291.51°)
OKLab	oklab(35.03% -0.0176 -0.1311)
OKLCH	oklch(35.03% 0.132 262.4)
XYZ	xyz(5.2062, 4.0719, 20.2462)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10347E #7E5A10

analogous

#106B7E #10347E #23107E

triadic

#10347E #7E1034 #347E10

tetradic

#10347E #7E106B #7E5A10 #107E23

square

#10347E #7E106B #7E5A10 #107E23

split-complementary

#10347E #7E2310 #6B7E10

monochromatic

#030B1B #091E48 #10347E #174AB4 #2563E3

Accessibility & contrast

On white

11.57

#10347E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#10347E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10347E

11.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10347E	#FFFFFF	#000000	##FFFFFF
##10347E	1.00	11.57	1.81	11.57
#FFFFFF	11.57	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E81

Deuteranopia (green-blind)

#00347D

Tritanopia (blue-blind)

#004753

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #10347e;
/* rgb */ color: rgb(16, 52, 126);
/* oklch */ color: oklch(35.0% 0.132 262.4);

Tailwind

colors: {
  custom: {
    50: '#656aa4',
    500: '#10347e',
    950: '#000000',
  },
}

SCSS

$custom: #10347e;
$custom-light: #656aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#10347e",
  "rgb": {
    "r": 16,
    "g": 52,
    "b": 126
  },
  "hsl": {
    "h": 220.364,
    "s": 77.465,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35035,
    "c": 0.13223,
    "h": 262.4
  },
  "luminance": 0.04073
}

Semantic roles & 50–950 ramp

primary

#10347E

secondary

#B48B36

accent

#B534F4

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #10347E

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

Preview Lab → · Contrast checker → · Palette generator →