#1E3BA8#1E3BA8

#1E3BA8 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.8% C 0.178 H 266.4°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#1E3BA8
RGB	rgb(30, 59, 168)
HSL	hsl(227, 70%, 39%)
HSV	hsv(227, 82%, 66%)
CMYK	cmyk(82.1%, 64.9%, 0%, 34.1%)
CIE-LAB	lab(29.99, 31.07, -61.23)
CIE-LCH	lch(29.99, 68.66, 296.90°)
OKLab	oklab(40.84% -0.011 -0.1773)
OKLCH	oklch(40.84% 0.178 266.4)
XYZ	xyz(9.1648, 6.2300, 37.7577)
Luminance	0.0623 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3BA8 #A88B1E

analogous

#1E80A8 #1E3BA8 #461EA8

triadic

#1E3BA8 #A81E3B #3BA81E

tetradic

#1E3BA8 #A81E80 #A88B1E #1EA846

square

#1E3BA8 #A81E80 #A88B1E #1EA846

split-complementary

#1E3BA8 #A8461E #80A81E

monochromatic

#0B1740 #152974 #1E3BA8 #2A4FD9 #5E7AE2

Accessibility & contrast

On white

9.35

#1E3BA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#1E3BA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3BA8

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3BA8	#FFFFFF	#000000	##FFFFFF
##1E3BA8	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DAB

Deuteranopia (green-blind)

#0040A6

Tritanopia (blue-blind)

#00586C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1e3ba8;
/* rgb */ color: rgb(30, 59, 168);
/* oklch */ color: oklch(40.8% 0.178 266.4);

Tailwind

colors: {
  custom: {
    50: '#7370c3',
    500: '#1e3ba8',
    950: '#000000',
  },
}

SCSS

$custom: #1e3ba8;
$custom-light: #7370c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3ba8",
  "rgb": {
    "r": 30,
    "g": 59,
    "b": 168
  },
  "hsl": {
    "h": 227.391,
    "s": 69.697,
    "l": 38.824
  },
  "oklch": {
    "l": 0.40844,
    "c": 0.17762,
    "h": 266.4
  },
  "luminance": 0.06231
}

Semantic roles & 50–950 ramp

primary

#1E3BA8

secondary

#C7B05B

accent

#C73BED

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #1E3BA8

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

Preview Lab → · Contrast checker → · Palette generator →