#133F7B#133F7B

#133F7B is a dark, moderate cyan. Relative luminance 0.051; OKLCH L 37.4% C 0.113 H 257.5°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#133F7B
RGB	rgb(19, 63, 123)
HSL	hsl(215, 73%, 28%)
HSV	hsv(215, 85%, 48%)
CMYK	cmyk(84.6%, 48.8%, 0%, 51.8%)
CIE-LAB	lab(27.08, 9.09, -38.32)
CIE-LCH	lch(27.08, 39.38, 283.35°)
OKLab	oklab(37.41% -0.0244 -0.1101)
OKLCH	oklch(37.41% 0.113 257.5)
XYZ	xyz(5.6199, 5.1228, 19.4277)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133F7B #7B4F13

analogous

#13737B #133F7B #1B137B

triadic

#133F7B #7B133F #3F7B13

tetradic

#133F7B #7B1373 #7B4F13 #137B1B

square

#133F7B #7B1373 #7B4F13 #137B1B

split-complementary

#133F7B #7B1B13 #737B13

monochromatic

#040E1B #0B2446 #133F7B #1B5AB0 #2A76DE

Accessibility & contrast

On white

10.37

#133F7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#133F7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133F7B

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133F7B	#FFFFFF	#000000	##FFFFFF
##133F7B	1.00	10.37	2.02	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E457D

Deuteranopia (green-blind)

#003C7A

Tritanopia (blue-blind)

#004D57

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #133f7b;
/* rgb */ color: rgb(19, 63, 123);
/* oklch */ color: oklch(37.4% 0.113 257.5);

Tailwind

colors: {
  custom: {
    50: '#6473a2',
    500: '#133f7b',
    950: '#000000',
  },
}

SCSS

$custom: #133f7b;
$custom-light: #6473a2;
$custom-dark: #000000;

JSON

{
  "hex": "#133f7b",
  "rgb": {
    "r": 19,
    "g": 63,
    "b": 123
  },
  "hsl": {
    "h": 214.615,
    "s": 73.239,
    "l": 27.843
  },
  "oklch": {
    "l": 0.37409,
    "c": 0.11276,
    "h": 257.5
  },
  "luminance": 0.05124
}

Semantic roles & 50–950 ramp

primary

#133F7B

secondary

#B17E39

accent

#A238F0

background

#F6F6FA

surface

#EBECF3

border

#C6C7CD

text

#06080F

muted

#7A7B7F

Preview Lab

Preview with #133F7B

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

Preview Lab → · Contrast checker → · Palette generator →