#4552C9
Closest named color: Warm Blue (#4B57DB). oklch(50% 0.183 273.1), rgb(69, 82, 201).
Aa
White text reads best on this color (6.35:1).
About this color
#4552C9 is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.183 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.032 away. White text reads best on it, at 6.35:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.183) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.30:1 |
| White text | 6.35:1 |
Values
| HEX | #4552C9 |
| RGB | rgb(69, 82, 201) |
| HSL | hsl(234, 55%, 53%) |
| OKLCH | oklch(50% 0.183 273.1) |
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 #4552C9 | 6.35:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #4552C9 | 3.30:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #4552C9 text on white | 6.35:1 | AA | Lc 81.1 | Fine for body text |
| #4552C9 text on black | 3.30:1 | AA large text | Lc -20.7 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CED8FB
oklch(88.6% 0.049 272.8)
-
Step 300
300
#ADBDFB
oklch(80.8% 0.09 273.1)
-
Step 400
400
#8499F8
oklch(70.7% 0.141 272.9)
-
Step 500
500
#687CF5
oklch(63.1% 0.181 273.1)
-
Step 600
600
#5261E4
oklch(55.6% 0.197 273.2)
-
Step 700
700 (this color)
#4552C9
oklch(50% 0.183 273.1)
-
Step 800
800
#3742A0
oklch(42.7% 0.151 273.1)
-
Step 900
900
#2F397F
oklch(37.7% 0.118 273.3)
-
Step 950
950
#1B224A
oklch(27% 0.074 273)
#4552C9 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) | #0065CD | 0.057 |
| Deuteranopia (no green cones) | #005AC7 | 0.048 |
| Tritanopia (no blue cones) | #006F85 | 0.151 |
| Achromatopsia (no color) | #5F5F5F | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4552C9
#4552C9
oklch(50% 0.183 273.1)
- #776100
#776100
oklch(50% 0.102 93.4)
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 #4552C9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.032
- Iris #6258C4 ΔE 0.047
- Blue With A Hint Of Purple #533CC6 ΔE 0.048
- Bluey Purple #6241C7 ΔE 0.053
- Blurple #5539CC ΔE 0.053
- Blue Blue #2242C7 ΔE 0.058
- Majorelle Blue #3F37C9 ΔE 0.058
- Slate Blue #6A5ACD ΔE 0.060
Use #4552C9 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.