#5556E6
Closest named color: Warm Blue (#4B57DB). oklch(54% 0.212 276.3), rgb(85, 86, 230).
Aa
White text reads best on this color (5.44:1).
About this color
#5556E6 is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.212 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.021 away. White text reads best on it, at 5.44:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.212) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.86:1 |
| White text | 5.44:1 |
Values
| HEX | #5556E6 |
| RGB | rgb(85, 86, 230) |
| HSL | hsl(240, 74%, 62%) |
| OKLCH | oklch(54% 0.212 276.3) |
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 #5556E6 | 5.44:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #5556E6 | 3.86:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #5556E6 text on white | 5.44:1 | AA | Lc 76.6 | Fine for body text |
| #5556E6 text on black | 3.86:1 | AA large text | Lc -25.2 | 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 600.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FD
oklch(93.6% 0.028 274.7)
-
Step 200
200
#CFD7FD
oklch(88.5% 0.053 275.9)
-
Step 300
300
#B0BCFE
oklch(81% 0.094 276.1)
-
Step 400
400
#8896FE
oklch(70.7% 0.152 276)
-
Step 500
500
#6E77FC
oklch(63.1% 0.195 276.4)
-
Step 600
600 (this color)
#5556E6
oklch(54% 0.212 276.3)
-
Step 700
700
#4A4ACD
oklch(49.2% 0.197 276.4)
-
Step 800
800
#3C3EA6
oklch(42.8% 0.163 276.2)
-
Step 900
900
#323683
oklch(37.7% 0.127 276.2)
-
Step 950
950
#1D204D
oklch(26.9% 0.082 276.5)
#5556E6 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) | #0070EB | 0.074 |
| Deuteranopia (no green cones) | #0063E3 | 0.063 |
| Tritanopia (no blue cones) | #007A96 | 0.176 |
| Achromatopsia (no color) | #6A6A6A | 0.213 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5556E6
#5556E6
oklch(54% 0.212 276.3)
- #826E00
#826E00
oklch(54.1% 0.111 96.5)
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 #5556E6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.021
- Neon Blue #4361EE ΔE 0.031
- Royal Blue #4169E1 ΔE 0.046
- Dark Periwinkle #665FD1 ΔE 0.048
- Slate Blue #6A5ACD ΔE 0.051
- Light Indigo #6D5ACF ΔE 0.052
- Azul #1D5DEC ΔE 0.053
- Iris #6258C4 ΔE 0.056
Use #5556E6 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.