#1E52BB
Closest named color: Blue Blue (#2242C7). oklch(47.1% 0.175 262.2), rgb(30, 82, 187).
Aa
White text reads best on this color (7.04:1).
About this color
#1E52BB is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.175 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.041 away. White text reads best on it, at 7.04:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.175) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.97:1 |
| White text | 7.04:1 |
Values
| HEX | #1E52BB |
| RGB | rgb(30, 82, 187) |
| HSL | hsl(220, 72%, 43%) |
| OKLCH | oklch(47.1% 0.175 262.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #1E52BB | 7.04:1 | AAA | Lc -88.8 | Fine for body text |
| Black text on #1E52BB | 2.97:1 | Fails | Lc 20.2 | Dividers and decoration only |
| #1E52BB text on white | 7.04:1 | AAA | Lc 83.8 | Fine for body text |
| #1E52BB text on black | 2.97:1 | Fails | Lc -18.2 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C9DAF9
oklch(88.5% 0.047 262.5)
-
Step 300
300
#A3C1F8
oklch(80.8% 0.085 262.3)
-
Step 400
400
#729FF5
oklch(70.7% 0.136 262.5)
-
Step 500
500
#4D84F1
oklch(63.1% 0.174 262.4)
-
Step 600
600
#316BDF
oklch(55.6% 0.188 262.2)
-
Step 700
700 (this color)
#1E52BB
oklch(47.1% 0.175 262.2)
-
Step 800
800
#1F499D
oklch(42.8% 0.145 262.2)
-
Step 900
900
#1E3E7D
oklch(37.7% 0.114 262.2)
-
Step 950
950
#122549
oklch(27% 0.071 261.9)
#1E52BB with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #0060BF | 0.035 |
| Deuteranopia (no green cones) | #0052B9 | 0.013 |
| Tritanopia (no blue cones) | #006C7E | 0.134 |
| Achromatopsia (no color) | #595959 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E52BB
#1E52BB
oklch(47.1% 0.175 262.2)
- #765500
#765500
oklch(47.2% 0.097 82.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #1E52BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.041
- Majorelle Blue #3F37C9 ΔE 0.064
- Sapphire #2138AB ΔE 0.067
- Mid Blue #276AB3 ΔE 0.069
- Warm Blue #4B57DB ΔE 0.071
- Blue With A Hint Of Purple #533CC6 ΔE 0.073
- Cobalt #1E488F ΔE 0.074
- Dusk Blue #26538D ΔE 0.075
Use #1E52BB in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.