#153B75#153B75

#153B75 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.1% C 0.109 H 258.9°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#153B75
RGB	rgb(21, 59, 117)
HSL	hsl(216, 70%, 27%)
HSV	hsv(216, 82%, 46%)
CMYK	cmyk(82.1%, 49.6%, 0%, 54.1%)
CIE-LAB	lab(25.48, 9.60, -37.11)
CIE-LCH	lch(25.48, 38.33, 284.51°)
OKLab	oklab(36.05% -0.0208 -0.1066)
OKLCH	oklch(36.05% 0.109 258.9)
XYZ	xyz(5.0829, 4.5711, 17.4406)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B75 #754F15

analogous

#156B75 #153B75 #1F1575

triadic

#153B75 #75153B #3B7515

tetradic

#153B75 #75156B #754F15 #15751F

square

#153B75 #75156B #754F15 #15751F

split-complementary

#153B75 #751F15 #6B7515

monochromatic

#050D1A #0C2141 #153B75 #1E55A9 #2B70D9

Accessibility & contrast

On white

10.97

#153B75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#153B75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B75

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B75	#FFFFFF	#000000	##FFFFFF
##153B75	1.00	10.97	1.91	10.97
#FFFFFF	10.97	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4177

Deuteranopia (green-blind)

#003874

Tritanopia (blue-blind)

#004952

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #153b75;
/* rgb */ color: rgb(21, 59, 117);
/* oklch */ color: oklch(36.1% 0.109 258.9);

Tailwind

colors: {
  custom: {
    50: '#63709d',
    500: '#153b75',
    950: '#000000',
  },
}

SCSS

$custom: #153b75;
$custom-light: #63709d;
$custom-dark: #000000;

JSON

{
  "hex": "#153b75",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 117
  },
  "hsl": {
    "h": 216.25,
    "s": 69.565,
    "l": 27.059
  },
  "oklch": {
    "l": 0.36053,
    "c": 0.10862,
    "h": 258.9
  },
  "luminance": 0.04572
}

Semantic roles & 50–950 ramp

primary

#153B75

secondary

#AB7F3B

accent

#A63BEC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #153B75

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

Preview Lab → · Contrast checker → · Palette generator →