#545FC1
Closest named color: Iris (#6258C4). oklch(52.8% 0.152 275.1), rgb(84, 95, 193).
Aa
White text reads best on this color (5.54:1).
About this color
#545FC1 is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.152 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.025 away. White text reads best on it, at 5.54:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.78:1 |
| White text | 5.54:1 |
Values
| HEX | #545FC1 |
| RGB | rgb(84, 95, 193) |
| HSL | hsl(234, 47%, 54%) |
| OKLCH | oklch(52.8% 0.152 275.1) |
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 #545FC1 | 5.54:1 | AA | Lc -82.8 | Fine for body text |
| Black text on #545FC1 | 3.78:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #545FC1 text on white | 5.54:1 | AA | Lc 77.5 | Fine for body text |
| #545FC1 text on black | 3.78:1 | AA large text | Lc -24.3 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D1D8F3
oklch(88.5% 0.038 274.1)
-
Step 300
300
#B3BEED
oklch(80.9% 0.068 274.5)
-
Step 400
400
#8D9BE5
oklch(70.8% 0.109 275.1)
-
Step 500
500
#7280DD
oklch(63.1% 0.14 275.2)
-
Step 600
600 (this color)
#545FC1
oklch(52.8% 0.152 275.1)
-
Step 700
700
#4C56AF
oklch(49.2% 0.14 275.2)
-
Step 800
800
#3E468E
oklch(42.6% 0.118 275.5)
-
Step 900
900
#343C71
oklch(37.7% 0.091 274.8)
-
Step 950
950
#1F2342
oklch(26.9% 0.058 276.3)
#545FC1 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) | #2C6DC4 | 0.049 |
| Deuteranopia (no green cones) | #1964BF | 0.054 |
| Tritanopia (no blue cones) | #147587 | 0.134 |
| Achromatopsia (no color) | #686868 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #545FC1
#545FC1
oklch(52.8% 0.152 275.1)
- #7F6A00
#7F6A00
oklch(52.9% 0.109 95.3)
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 #545FC1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.025
- Dark Periwinkle #665FD1 ΔE 0.036
- Slate Blue #6A5ACD ΔE 0.039
- Light Indigo #6D5ACF ΔE 0.044
- Warm Blue #4B57DB ΔE 0.048
- French Blue #436BAD ΔE 0.052
- Royal Blue #4169E1 ΔE 0.055
- Mid Blue #276AB3 ΔE 0.057
Use #545FC1 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.