#1C52CB
Closest named color: Blue Blue (#2242C7). oklch(48.4% 0.196 263), rgb(28, 82, 203).
Aa
White text reads best on this color (6.73:1).
About this color
#1C52CB is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.196 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.036 away. White text reads best on it, at 6.73:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.196) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.11:1 |
| White text | 6.73:1 |
Values
| HEX | #1C52CB |
| RGB | rgb(28, 82, 203) |
| HSL | hsl(221, 76%, 45%) |
| OKLCH | oklch(48.4% 0.196 263) |
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 #1C52CB | 6.73:1 | AA | Lc -87.5 | Fine for body text |
| Black text on #1C52CB | 3.11:1 | AA large text | Lc 21.6 | Dividers and decoration only |
| #1C52CB text on white | 6.73:1 | AA | Lc 82.4 | Fine for body text |
| #1C52CB text on black | 3.11:1 | AA large text | Lc -19.5 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C7DAFD
oklch(88.5% 0.053 262.7)
-
Step 300
300
#A0C1FF
oklch(80.9% 0.095 262.7)
-
Step 400
400
#6D9EFF
oklch(70.8% 0.152 262.8)
-
Step 500
500
#4781FD
oklch(63% 0.195 263.1)
-
Step 600
600
#2B67EC
oklch(55.6% 0.211 263)
-
Step 700
700 (this color)
#1C52CB
oklch(48.4% 0.196 263)
-
Step 800
800
#1A46A6
oklch(42.7% 0.162 262.9)
-
Step 900
900
#1B3C84
oklch(37.7% 0.127 263.1)
-
Step 950
950
#10244D
oklch(27% 0.08 262.7)
#1C52CB 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) | #0064CF | 0.044 |
| Deuteranopia (no green cones) | #0054C9 | 0.011 |
| Tritanopia (no blue cones) | #007186 | 0.151 |
| Achromatopsia (no color) | #5C5C5C | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C52CB
#1C52CB
oklch(48.4% 0.196 263)
- #7A5800
#7A5800
oklch(48.3% 0.1 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 #1C52CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.036
- Warm Blue #4B57DB ΔE 0.056
- Azul #1D5DEC ΔE 0.058
- Majorelle Blue #3F37C9 ΔE 0.059
- Blue With A Hint Of Purple #533CC6 ΔE 0.071
- Blurple #5539CC ΔE 0.075
- Neon Blue #4361EE ΔE 0.077
- Royal Blue #4169E1 ΔE 0.077
Use #1C52CB 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.