#5553CE
Closest named color: Warm Blue (#4B57DB). oklch(51.6% 0.185 278.4), rgb(85, 83, 206).
Aa
White text reads best on this color (5.97:1).
About this color
#5553CE is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.185 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.025 away. White text reads best on it, at 5.97:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.185) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.51:1 |
| White text | 5.97:1 |
Values
| HEX | #5553CE |
| RGB | rgb(85, 83, 206) |
| HSL | hsl(241, 56%, 57%) |
| OKLCH | oklch(51.6% 0.185 278.4) |
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 #5553CE | 5.97:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #5553CE | 3.51:1 | AA large text | Lc 24.6 | Dividers and decoration only |
| #5553CE text on white | 5.97:1 | AA | Lc 79.4 | Fine for body text |
| #5553CE text on black | 3.51:1 | AA large text | Lc -22.4 | 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
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#D1D7FA
oklch(88.6% 0.049 277.7)
-
Step 300
300
#B3BBFA
oklch(80.8% 0.089 278.6)
-
Step 400
400
#8D96F8
oklch(70.8% 0.143 278.1)
-
Step 500
500
#7478F5
oklch(63.2% 0.183 278.4)
-
Step 600
600
#5F5DE3
oklch(55.7% 0.198 278.5)
-
Step 700
700 (this color)
#5553CE
oklch(51.6% 0.185 278.4)
-
Step 800
800
#403FA0
oklch(42.8% 0.153 278.2)
-
Step 900
900
#36377F
oklch(37.8% 0.119 278.5)
-
Step 950
950
#1F214A
oklch(27.1% 0.075 278.1)
#5553CE 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) | #0068D2 | 0.073 |
| Deuteranopia (no green cones) | #005ECC | 0.067 |
| Tritanopia (no blue cones) | #007188 | 0.160 |
| Achromatopsia (no color) | #636363 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5553CE
#5553CE
oklch(51.6% 0.185 278.4)
- #786800
#786800
oklch(51.7% 0.107 98.6)
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 #5553CE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.025
- Iris #6258C4 ΔE 0.029
- Slate Blue #6A5ACD ΔE 0.038
- Dark Periwinkle #665FD1 ΔE 0.041
- Bluey Purple #6241C7 ΔE 0.042
- Light Indigo #6D5ACF ΔE 0.042
- Blue With A Hint Of Purple #533CC6 ΔE 0.051
- Blurple #5539CC ΔE 0.053
Use #5553CE 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.