#133C7B#133C7B

#133C7B is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.7% C 0.117 H 259.2°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#133C7B
RGB	rgb(19, 60, 123)
HSL	hsl(216, 73%, 28%)
HSV	hsv(216, 85%, 48%)
CMYK	cmyk(84.6%, 51.2%, 0%, 51.8%)
CIE-LAB	lab(26.16, 11.20, -39.81)
CIE-LCH	lch(26.16, 41.35, 285.71°)
OKLab	oklab(36.7% -0.0219 -0.1145)
OKLCH	oklch(36.7% 0.117 259.2)
XYZ	xyz(5.4583, 4.7996, 19.3738)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133C7B #7B5213

analogous

#13707B #133C7B #1E137B

triadic

#133C7B #7B133C #3C7B13

tetradic

#133C7B #7B1370 #7B5213 #137B1E

square

#133C7B #7B1370 #7B5213 #137B1E

split-complementary

#133C7B #7B1E13 #707B13

monochromatic

#040D1B #0B2246 #133C7B #1B56B0 #2A71DE

Accessibility & contrast

On white

10.71

#133C7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#133C7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133C7B

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133C7B	#FFFFFF	#000000	##FFFFFF
##133C7B	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16437D

Deuteranopia (green-blind)

#00397A

Tritanopia (blue-blind)

#004B55

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #133c7b;
/* rgb */ color: rgb(19, 60, 123);
/* oklch */ color: oklch(36.7% 0.117 259.2);

Tailwind

colors: {
  custom: {
    50: '#6471a2',
    500: '#133c7b',
    950: '#000000',
  },
}

SCSS

$custom: #133c7b;
$custom-light: #6471a2;
$custom-dark: #000000;

JSON

{
  "hex": "#133c7b",
  "rgb": {
    "r": 19,
    "g": 60,
    "b": 123
  },
  "hsl": {
    "h": 216.346,
    "s": 73.239,
    "l": 27.843
  },
  "oklch": {
    "l": 0.36696,
    "c": 0.11663,
    "h": 259.2
  },
  "luminance": 0.048
}

Semantic roles & 50–950 ramp

primary

#133C7B

secondary

#B18239

accent

#A738F0

background

#F6F6FA

surface

#EBECF3

border

#C6C7CD

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #133C7B

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

Preview Lab → · Contrast checker → · Palette generator →