#5575EB
Closest named color: Cornflower (#6A79F7). oklch(60% 0.181 269), rgb(85, 117, 235).
Aa
Black text reads best on this color (5.13:1).
About this color
#5575EB is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.181 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.034 away. Black text reads best on it, at 5.13:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.181) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.13:1 |
| White text | 4.09:1 |
Values
| HEX | #5575EB |
| RGB | rgb(85, 117, 235) |
| HSL | hsl(227, 79%, 63%) |
| OKLCH | oklch(60% 0.181 269) |
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 #5575EB | 4.09:1 | AA large text | Lc -73.3 | Content text, not long reading |
| Black text on #5575EB | 5.13:1 | AA | Lc 36.3 | Non-text elements, placeholder text |
| #5575EB text on white | 4.09:1 | AA large text | Lc 67.8 | Content text, not long reading |
| #5575EB text on black | 5.13:1 | AA | Lc -33.9 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3EAFC
oklch(93.7% 0.025 268.8)
-
Step 200
200
#CCD9FB
oklch(88.6% 0.049 268.8)
-
Step 300
300
#A9BFFB
oklch(81% 0.089 268.8)
-
Step 400
400
#7C9BF9
oklch(70.7% 0.142 268.8)
-
Step 500
500 (this color)
#5575EB
oklch(60% 0.181 269)
-
Step 600
600
#4664E4
oklch(55.5% 0.197 269)
-
Step 700
700
#3852C7
oklch(49.1% 0.184 269)
-
Step 800
800
#2E44A1
oklch(42.7% 0.153 268.9)
-
Step 900
900
#283B7F
oklch(37.7% 0.117 268.5)
-
Step 950
950
#18234B
oklch(27.1% 0.075 269.3)
#5575EB 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) | #3185EF | 0.045 |
| Deuteranopia (no green cones) | #0077E9 | 0.050 |
| Tritanopia (no blue cones) | #0091A5 | 0.153 |
| Achromatopsia (no color) | #7D7D7D | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5575EB
#5575EB
oklch(60% 0.181 269)
- #9E7B00
#9E7B00
oklch(60% 0.123 88.6)
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 #5575EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.034
- Royal Blue #4169E1 ΔE 0.042
- Clear Blue #247AFD ΔE 0.045
- Soft Blue #6488EA ΔE 0.054
- Neon Blue #4361EE ΔE 0.055
- Medium Slate Blue #7B68EE ΔE 0.056
- Cerulean Blue #056EEE ΔE 0.058
- Dark Periwinkle #665FD1 ΔE 0.064
Use #5575EB 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.