#153B74#153B74

#153B74 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 36.0% C 0.107 H 258.7°. Best body text is #FFFFFF at 11.00:1 contrast (WCAG AA passes).

Color values

HEX	#153B74
RGB	rgb(21, 59, 116)
HSL	hsl(216, 69%, 27%)
HSV	hsv(216, 82%, 45%)
CMYK	cmyk(81.9%, 49.1%, 0%, 54.5%)
CIE-LAB	lab(25.41, 9.18, -36.59)
CIE-LCH	lch(25.41, 37.72, 284.09°)
OKLab	oklab(35.98% -0.021 -0.1051)
OKLCH	oklch(35.98% 0.107 258.7)
XYZ	xyz(5.0245, 4.5477, 17.1326)
Luminance	0.0455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B74 #744E15

analogous

#156B74 #153B74 #1F1574

triadic

#153B74 #74153B #3B7415

tetradic

#153B74 #74156B #744E15 #15741F

square

#153B74 #74156B #744E15 #15741F

split-complementary

#153B74 #741F15 #6B7415

monochromatic

#050D1A #0C2140 #153B74 #1E55A8 #2B70D9

Accessibility & contrast

On white

11.00

#153B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#153B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B74

11.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B74	#FFFFFF	#000000	##FFFFFF
##153B74	1.00	11.00	1.91	11.00
#FFFFFF	11.00	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4176

Deuteranopia (green-blind)

#023873

Tritanopia (blue-blind)

#004952

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #153b74;
/* rgb */ color: rgb(21, 59, 116);
/* oklch */ color: oklch(36.0% 0.107 258.7);

Tailwind

colors: {
  custom: {
    50: '#63709c',
    500: '#153b74',
    950: '#000000',
  },
}

SCSS

$custom: #153b74;
$custom-light: #63709c;
$custom-dark: #000000;

JSON

{
  "hex": "#153b74",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 116
  },
  "hsl": {
    "h": 216,
    "s": 69.343,
    "l": 26.863
  },
  "oklch": {
    "l": 0.35976,
    "c": 0.10714,
    "h": 258.7
  },
  "luminance": 0.04548
}

Semantic roles & 50–950 ramp

primary

#153B74

secondary

#AA7E3B

accent

#A63CEC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #153B74

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

Preview Lab → · Contrast checker → · Palette generator →