#153A71#153A71

#153A71 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.5% C 0.104 H 258.5°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#153A71
RGB	rgb(21, 58, 113)
HSL	hsl(216, 69%, 26%)
HSV	hsv(216, 81%, 44%)
CMYK	cmyk(81.4%, 48.7%, 0%, 55.7%)
CIE-LAB	lab(24.88, 8.63, -35.52)
CIE-LCH	lch(24.88, 36.55, 283.65°)
OKLab	oklab(35.5% -0.0207 -0.1019)
OKLCH	oklch(35.5% 0.104 258.5)
XYZ	xyz(4.8019, 4.3772, 16.2114)
Luminance	0.0438 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153A71 #714C15

analogous

#156871 #153A71 #1E1571

triadic

#153A71 #71153A #3A7115

tetradic

#153A71 #711568 #714C15 #15711E

square

#153A71 #711568 #714C15 #15711E

split-complementary

#153A71 #711E15 #687115

monochromatic

#050D1A #0B203D #153A71 #1F54A5 #296FD7

Accessibility & contrast

On white

11.20

#153A71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#153A71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A71

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153A71	#FFFFFF	#000000	##FFFFFF
##153A71	1.00	11.20	1.88	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4073

Deuteranopia (green-blind)

#053770

Tritanopia (blue-blind)

#004750

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #153a71;
/* rgb */ color: rgb(21, 58, 113);
/* oklch */ color: oklch(35.5% 0.104 258.5);

Tailwind

colors: {
  custom: {
    50: '#626f9a',
    500: '#153a71',
    950: '#000000',
  },
}

SCSS

$custom: #153a71;
$custom-light: #626f9a;
$custom-dark: #000000;

JSON

{
  "hex": "#153a71",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 113
  },
  "hsl": {
    "h": 215.87,
    "s": 68.657,
    "l": 26.275
  },
  "oklch": {
    "l": 0.35505,
    "c": 0.10402,
    "h": 258.5
  },
  "luminance": 0.04378
}

Semantic roles & 50–950 ramp

primary

#153A71

secondary

#A77C3B

accent

#A53CEB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #153A71

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

Preview Lab → · Contrast checker → · Palette generator →