#10357E#10357E

#10357E is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.3% C 0.131 H 262.0°. Best body text is #FFFFFF at 11.46:1 contrast (WCAG AA passes).

Color values

HEX	#10357E
RGB	rgb(16, 53, 126)
HSL	hsl(220, 77%, 28%)
HSV	hsv(220, 87%, 49%)
CMYK	cmyk(87.3%, 57.9%, 0%, 50.6%)
CIE-LAB	lab(24.20, 17.16, -44.87)
CIE-LCH	lch(24.20, 48.04, 290.93°)
OKLab	oklab(35.26% -0.0182 -0.1296)
OKLCH	oklch(35.26% 0.131 262)
XYZ	xyz(5.2513, 4.1621, 20.2612)
Luminance	0.0416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10357E #7E5910

analogous

#106C7E #10357E #22107E

triadic

#10357E #7E1035 #357E10

tetradic

#10357E #7E106C #7E5910 #107E22

square

#10357E #7E106C #7E5910 #107E22

split-complementary

#10357E #7E2210 #6C7E10

monochromatic

#030B1B #091E48 #10357E #174CB4 #2565E3

Accessibility & contrast

On white

11.46

#10357E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#10357E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10357E

11.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10357E	#FFFFFF	#000000	##FFFFFF
##10357E	1.00	11.46	1.83	11.46
#FFFFFF	11.46	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F81

Deuteranopia (green-blind)

#00357D

Tritanopia (blue-blind)

#004754

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #10357e;
/* rgb */ color: rgb(16, 53, 126);
/* oklch */ color: oklch(35.3% 0.131 262.0);

Tailwind

colors: {
  custom: {
    50: '#656ba4',
    500: '#10357e',
    950: '#000000',
  },
}

SCSS

$custom: #10357e;
$custom-light: #656ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#10357e",
  "rgb": {
    "r": 16,
    "g": 53,
    "b": 126
  },
  "hsl": {
    "h": 219.818,
    "s": 77.465,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35256,
    "c": 0.13092,
    "h": 262
  },
  "luminance": 0.04163
}

Semantic roles & 50–950 ramp

primary

#10357E

secondary

#B48A36

accent

#B334F4

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #10357E

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

Preview Lab → · Contrast checker → · Palette generator →