#103A7F#103A7F

#103A7F is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.5% C 0.126 H 260.1°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#103A7F
RGB	rgb(16, 58, 127)
HSL	hsl(217, 78%, 28%)
HSV	hsv(217, 87%, 50%)
CMYK	cmyk(87.4%, 54.3%, 0%, 50.2%)
CIE-LAB	lab(25.77, 14.02, -42.96)
CIE-LCH	lch(25.77, 45.19, 288.08°)
OKLab	oklab(36.47% -0.0216 -0.1239)
OKLCH	oklch(36.47% 0.126 260.1)
XYZ	xyz(5.5561, 4.6679, 20.6827)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103A7F #7F5510

analogous

#10717F #103A7F #1D107F

triadic

#103A7F #7F103A #3A7F10

tetradic

#103A7F #7F1071 #7F5510 #107F1D

square

#103A7F #7F1071 #7F5510 #107F1D

split-complementary

#103A7F #7F1D10 #717F10

monochromatic

#030C1B #092149 #103A7F #1753B5 #266EE4

Accessibility & contrast

On white

10.86

#103A7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#103A7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103A7F

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103A7F	#FFFFFF	#000000	##FFFFFF
##103A7F	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#064281

Deuteranopia (green-blind)

#00387E

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #103a7f;
/* rgb */ color: rgb(16, 58, 127);
/* oklch */ color: oklch(36.5% 0.126 260.1);

Tailwind

colors: {
  custom: {
    50: '#646fa5',
    500: '#103a7f',
    950: '#000000',
  },
}

SCSS

$custom: #103a7f;
$custom-light: #646fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#103a7f",
  "rgb": {
    "r": 16,
    "g": 58,
    "b": 127
  },
  "hsl": {
    "h": 217.297,
    "s": 77.622,
    "l": 28.039
  },
  "oklch": {
    "l": 0.36471,
    "c": 0.12577,
    "h": 260.1
  },
  "luminance": 0.04669
}

Semantic roles & 50–950 ramp

primary

#103A7F

secondary

#B58536

accent

#AB34F4

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #103A7F

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

Preview Lab → · Contrast checker → · Palette generator →