#5561EB
Closest named color: Neon Blue (#4361EE). oklch(56.3% 0.206 274), rgb(85, 97, 235).
Aa
White text reads best on this color (4.88:1).
About this color
#5561EB is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.206 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.021 away. White text reads best on it, at 4.88:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.206) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.29:1 |
| White text | 4.88:1 |
Values
| HEX | #5561EB |
| RGB | rgb(85, 97, 235) |
| HSL | hsl(235, 79%, 63%) |
| OKLCH | oklch(56.3% 0.206 274) |
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 #5561EB | 4.88:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #5561EB | 4.29:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #5561EB text on white | 4.88:1 | AA | Lc 73.4 | Content text, not long reading |
| #5561EB text on black | 4.29:1 | AA large text | Lc -28.3 | 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
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CED7FC
oklch(88.4% 0.052 274.5)
-
Step 300
300
#AEBDFD
oklch(81% 0.092 274)
-
Step 400
400
#8598FC
oklch(70.8% 0.147 273.9)
-
Step 500
500
#697AF9
oklch(63.1% 0.188 274)
-
Step 600
600 (this color)
#5561EB
oklch(56.3% 0.206 274)
-
Step 700
700
#444DCA
oklch(49.1% 0.191 273.8)
-
Step 800
800
#3840A3
oklch(42.7% 0.158 274.1)
-
Step 900
900
#2F3882
oklch(37.8% 0.124 273.7)
-
Step 950
950
#1B214C
oklch(26.9% 0.079 273.9)
#5561EB 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) | #0078F0 | 0.068 |
| Deuteranopia (no green cones) | #006AE8 | 0.057 |
| Tritanopia (no blue cones) | #00839D | 0.170 |
| Achromatopsia (no color) | #717171 | 0.206 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5561EB
#5561EB
oklch(56.3% 0.206 274)
- #8C7300
#8C7300
oklch(56.3% 0.115 93.7)
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 #5561EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.021
- Royal Blue #4169E1 ΔE 0.031
- Warm Blue #4B57DB ΔE 0.037
- Dark Periwinkle #665FD1 ΔE 0.045
- Azul #1D5DEC ΔE 0.054
- Slate Blue #6A5ACD ΔE 0.055
- Light Indigo #6D5ACF ΔE 0.055
- Cerulean Blue #056EEE ΔE 0.057
Use #5561EB 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.