#153F7E#153F7E

#153F7E is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.7% C 0.117 H 258.8°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#153F7E
RGB	rgb(21, 63, 126)
HSL	hsl(216, 71%, 29%)
HSV	hsv(216, 83%, 49%)
CMYK	cmyk(83.3%, 50%, 0%, 50.6%)
CIE-LAB	lab(27.35, 10.56, -39.76)
CIE-LCH	lch(27.35, 41.14, 284.88°)
OKLab	oklab(37.7% -0.0227 -0.1143)
OKLCH	oklch(37.7% 0.117 258.8)
XYZ	xyz(5.8513, 5.2201, 20.4338)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153F7E #7E5415

analogous

#15747E #153F7E #20157E

triadic

#153F7E #7E153F #3F7E15

tetradic

#153F7E #7E1574 #7E5415 #157E20

square

#153F7E #7E1574 #7E5415 #157E20

split-complementary

#153F7E #7E2015 #747E15

monochromatic

#040D1A #0C254A #153F7E #1E59B2 #3176DD

Accessibility & contrast

On white

10.27

#153F7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#153F7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153F7E

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153F7E	#FFFFFF	#000000	##FFFFFF
##153F7E	1.00	10.27	2.04	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4680

Deuteranopia (green-blind)

#003C7D

Tritanopia (blue-blind)

#004E58

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #153f7e;
/* rgb */ color: rgb(21, 63, 126);
/* oklch */ color: oklch(37.7% 0.117 258.8);

Tailwind

colors: {
  custom: {
    50: '#6573a4',
    500: '#153f7e',
    950: '#000000',
  },
}

SCSS

$custom: #153f7e;
$custom-light: #6573a4;
$custom-dark: #000000;

JSON

{
  "hex": "#153f7e",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 126
  },
  "hsl": {
    "h": 216,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.37702,
    "c": 0.11654,
    "h": 258.8
  },
  "luminance": 0.05221
}

Semantic roles & 50–950 ramp

primary

#153F7E

secondary

#B3833C

accent

#A63AEE

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #153F7E

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

Preview Lab → · Contrast checker → · Palette generator →