#153A74#153A74

#153A74 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.7% C 0.108 H 259.3°. Best body text is #FFFFFF at 11.12:1 contrast (WCAG AA passes).

Color values

HEX	#153A74
RGB	rgb(21, 58, 116)
HSL	hsl(217, 69%, 27%)
HSV	hsv(217, 82%, 45%)
CMYK	cmyk(81.9%, 50%, 0%, 54.5%)
CIE-LAB	lab(25.09, 9.89, -37.09)
CIE-LCH	lch(25.09, 38.38, 284.93°)
OKLab	oklab(35.74% -0.0201 -0.1066)
OKLCH	oklch(35.74% 0.108 259.3)
XYZ	xyz(4.9736, 4.4459, 17.1156)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153A74 #744F15

analogous

#156A74 #153A74 #201574

triadic

#153A74 #74153A #3A7415

tetradic

#153A74 #74156A #744F15 #157420

square

#153A74 #74156A #744F15 #157420

split-complementary

#153A74 #742015 #6A7415

monochromatic

#050D1A #0C2040 #153A74 #1E54A8 #2B6ED9

Accessibility & contrast

On white

11.12

#153A74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#153A74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A74

11.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153A74	#FFFFFF	#000000	##FFFFFF
##153A74	1.00	11.12	1.89	11.12
#FFFFFF	11.12	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194076

Deuteranopia (green-blind)

#003773

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #153a74;
/* rgb */ color: rgb(21, 58, 116);
/* oklch */ color: oklch(35.7% 0.108 259.3);

Tailwind

colors: {
  custom: {
    50: '#636f9c',
    500: '#153a74',
    950: '#000000',
  },
}

SCSS

$custom: #153a74;
$custom-light: #636f9c;
$custom-dark: #000000;

JSON

{
  "hex": "#153a74",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 116
  },
  "hsl": {
    "h": 216.632,
    "s": 69.343,
    "l": 26.863
  },
  "oklch": {
    "l": 0.35737,
    "c": 0.10845,
    "h": 259.3
  },
  "luminance": 0.04446
}

Semantic roles & 50–950 ramp

primary

#153A74

secondary

#AA7F3B

accent

#A73CEC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #153A74

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

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