#545BC6
Closest named color: Iris (#6258C4). oklch(52.4% 0.164 276.3), rgb(84, 91, 198).
Aa
White text reads best on this color (5.69:1).
About this color
#545BC6 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.164 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.021 away. White text reads best on it, at 5.69:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.164) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.68:1 |
| White text | 5.69:1 |
Values
| HEX | #545BC6 |
| RGB | rgb(84, 91, 198) |
| HSL | hsl(236, 50%, 55%) |
| OKLCH | oklch(52.4% 0.164 276.3) |
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 #545BC6 | 5.69:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #545BC6 | 3.68:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #545BC6 text on white | 5.69:1 | AA | Lc 78.2 | Fine for body text |
| #545BC6 text on black | 3.68:1 | AA large text | Lc -23.6 | 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
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D1D7F5
oklch(88.4% 0.042 276.6)
-
Step 300
300
#B3BDF1
oklch(80.9% 0.074 276.1)
-
Step 400
400
#8D99EA
oklch(70.6% 0.119 276.5)
-
Step 500
500
#737EE3
oklch(63.1% 0.151 276.5)
-
Step 600
600 (this color)
#545BC6
oklch(52.4% 0.164 276.3)
-
Step 700
700
#4D53B5
oklch(49.1% 0.153 276.6)
-
Step 800
800
#3F4592
oklch(42.8% 0.125 276.4)
-
Step 900
900
#353B75
oklch(37.8% 0.098 276.2)
-
Step 950
950
#1F2344
oklch(27.1% 0.061 276.3)
#545BC6 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) | #166BCA | 0.061 |
| Deuteranopia (no green cones) | #0062C4 | 0.063 |
| Tritanopia (no blue cones) | #087488 | 0.144 |
| Achromatopsia (no color) | #676767 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #545BC6
#545BC6
oklch(52.4% 0.164 276.3)
- #7C6900
#7C6900
oklch(52.3% 0.108 96.6)
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 #545BC6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.021
- Dark Periwinkle #665FD1 ΔE 0.033
- Slate Blue #6A5ACD ΔE 0.034
- Warm Blue #4B57DB ΔE 0.037
- Light Indigo #6D5ACF ΔE 0.040
- Royal Blue #4169E1 ΔE 0.053
- Bluey Purple #6241C7 ΔE 0.059
- French Blue #436BAD ΔE 0.064
Use #545BC6 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.