#5C75DB
Closest named color: Cornflower (#6A79F7). oklch(59.4% 0.157 270.6), rgb(92, 117, 219).
Aa
Black text reads best on this color (5.02:1).
About this color
#5C75DB is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.157 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.047 away. Black text reads best on it, at 5.02:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.157) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.02:1 |
| White text | 4.18:1 |
Values
| HEX | #5C75DB |
| RGB | rgb(92, 117, 219) |
| HSL | hsl(228, 64%, 61%) |
| OKLCH | oklch(59.4% 0.157 270.6) |
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 #5C75DB | 4.18:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #5C75DB | 5.02:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #5C75DB text on white | 4.18:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #5C75DB text on black | 5.02:1 | AA | Lc -33.1 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9F9
oklch(93.5% 0.022 272.1)
-
Step 200
200
#CED8F6
oklch(88.4% 0.043 270.9)
-
Step 300
300
#AEBFF3
oklch(81% 0.076 270.6)
-
Step 400
400
#849CED
oklch(70.8% 0.122 270.5)
-
Step 500
500 (this color)
#5C75DB
oklch(59.4% 0.157 270.6)
-
Step 600
600
#4F67D6
oklch(55.5% 0.172 270.7)
-
Step 700
700
#4055B9
oklch(49% 0.159 270.5)
-
Step 800
800
#354696
oklch(42.6% 0.132 270.8)
-
Step 900
900
#2E3C77
oklch(37.7% 0.102 270.8)
-
Step 950
950
#1B2446
oklch(27.1% 0.064 270.5)
#5C75DB 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) | #4482DF | 0.038 |
| Deuteranopia (no green cones) | #3177D9 | 0.041 |
| Tritanopia (no blue cones) | #008C9D | 0.140 |
| Achromatopsia (no color) | #7C7C7C | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5C75DB
#5C75DB
oklch(59.4% 0.157 270.6)
- #9A7A00
#9A7A00
oklch(59.3% 0.121 90.3)
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 #5C75DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.047
- Royal Blue #4169E1 ΔE 0.047
- Soft Blue #6488EA ΔE 0.053
- Dark Periwinkle #665FD1 ΔE 0.054
- Medium Slate Blue #7B68EE ΔE 0.059
- Windows Blue #3778BF ΔE 0.060
- Dark Sky Blue #448EE4 ΔE 0.065
- Clear Blue #247AFD ΔE 0.066
Use #5C75DB 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.