#1E5BB1#1E5BB1

#1E5BB1 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.2% C 0.150 H 258.1°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#1E5BB1
RGB	rgb(30, 91, 177)
HSL	hsl(215, 71%, 41%)
HSV	hsv(215, 83%, 69%)
CMYK	cmyk(83.1%, 48.6%, 0%, 30.6%)
CIE-LAB	lab(39.46, 13.21, -51.17)
CIE-LCH	lch(39.46, 52.85, 284.48°)
OKLab	oklab(48.22% -0.0311 -0.1472)
OKLCH	oklch(48.22% 0.15 258.1)
XYZ	xyz(12.2094, 10.9310, 43.0528)
Luminance	0.1093 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E5BB1 #B1741E

analogous

#1EA4B1 #1E5BB1 #2B1EB1

triadic

#1E5BB1 #B11E5B #5BB11E

tetradic

#1E5BB1 #B11EA4 #B1741E #1EB12B

square

#1E5BB1 #B11EA4 #B1741E #1EB12B

split-complementary

#1E5BB1 #B12B1E #A4B11E

monochromatic

#0C2548 #15407D #1E5BB1 #3077DC #659AE5

Accessibility & contrast

On white

6.59

#1E5BB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#1E5BB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1E5BB1

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E5BB1	#FFFFFF	#000000	##FFFFFF
##1E5BB1	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2964B4

Deuteranopia (green-blind)

#0057AF

Tritanopia (blue-blind)

#00707D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1e5bb1;
/* rgb */ color: rgb(30, 91, 177);
/* oklch */ color: oklch(48.2% 0.150 258.1);

Tailwind

colors: {
  custom: {
    50: '#7388c9',
    500: '#1e5bb1',
    950: '#000000',
  },
}

SCSS

$custom: #1e5bb1;
$custom-light: #7388c9;
$custom-dark: #000000;

JSON

{
  "hex": "#1e5bb1",
  "rgb": {
    "r": 30,
    "g": 91,
    "b": 177
  },
  "hsl": {
    "h": 215.102,
    "s": 71.014,
    "l": 40.588
  },
  "oklch": {
    "l": 0.48218,
    "c": 0.15043,
    "h": 258.1
  },
  "luminance": 0.10933
}

Semantic roles & 50–950 ramp

primary

#1E5BB1

secondary

#CA9E61

accent

#A33AEE

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1E5BB1

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

Preview Lab → · Contrast checker → · Palette generator →