#11387F#11387F

#11387F is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.0% C 0.128 H 261.2°. Best body text is #FFFFFF at 11.08:1 contrast (WCAG AA passes).

Color values

HEX	#11387F
RGB	rgb(17, 56, 127)
HSL	hsl(219, 76%, 28%)
HSV	hsv(219, 87%, 50%)
CMYK	cmyk(86.6%, 55.9%, 0%, 50.2%)
CIE-LAB	lab(25.20, 15.53, -43.88)
CIE-LCH	lch(25.20, 46.55, 289.49°)
OKLab	oklab(36.05% -0.0196 -0.1267)
OKLCH	oklch(36.05% 0.128 261.2)
XYZ	xyz(5.4747, 4.4791, 20.6506)
Luminance	0.0448 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#11387F #7F5811

analogous

#116F7F #11387F #21117F

triadic

#11387F #7F1138 #387F11

tetradic

#11387F #7F116F #7F5811 #117F21

square

#11387F #7F116F #7F5811 #117F21

split-complementary

#11387F #7F2111 #6F7F11

monochromatic

#040C1B #0A2049 #11387F #1850B5 #286AE2

Accessibility & contrast

On white

11.08

#11387F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#11387F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #11387F

11.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##11387F	#FFFFFF	#000000	##FFFFFF
##11387F	1.00	11.08	1.90	11.08
#FFFFFF	11.08	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004181

Deuteranopia (green-blind)

#00377E

Tritanopia (blue-blind)

#004A55

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #11387f;
/* rgb */ color: rgb(17, 56, 127);
/* oklch */ color: oklch(36.0% 0.128 261.2);

Tailwind

colors: {
  custom: {
    50: '#656ea5',
    500: '#11387f',
    950: '#000000',
  },
}

SCSS

$custom: #11387f;
$custom-light: #656ea5;
$custom-dark: #000000;

JSON

{
  "hex": "#11387f",
  "rgb": {
    "r": 17,
    "g": 56,
    "b": 127
  },
  "hsl": {
    "h": 218.727,
    "s": 76.389,
    "l": 28.235
  },
  "oklch": {
    "l": 0.36045,
    "c": 0.12816,
    "h": 261.2
  },
  "luminance": 0.0448
}

Semantic roles & 50–950 ramp

primary

#11387F

secondary

#B58837

accent

#B035F3

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #11387F

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

Preview Lab → · Contrast checker → · Palette generator →