#545FBD
Closest named color: Iris (#6258C4). oklch(52.5% 0.146 275.2), rgb(84, 95, 189).
Aa
White text reads best on this color (5.60:1).
About this color
#545FBD is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.146 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.028 away. White text reads best on it, at 5.60:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.146) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.74:1 |
| White text | 5.60:1 |
Values
| HEX | #545FBD |
| RGB | rgb(84, 95, 189) |
| HSL | hsl(234, 44%, 54%) |
| OKLCH | oklch(52.5% 0.146 275.2) |
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 #545FBD | 5.60:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #545FBD | 3.74:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #545FBD text on white | 5.60:1 | AA | Lc 77.8 | Fine for body text |
| #545FBD text on black | 3.74:1 | AA large text | Lc -24.0 | 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
#D2D8F2
oklch(88.6% 0.036 275.3)
-
Step 300
300
#B4BEEC
oklch(80.9% 0.066 275.3)
-
Step 400
400
#8E9BE2
oklch(70.7% 0.105 275.4)
-
Step 500
500
#7381DA
oklch(63.2% 0.134 275.1)
-
Step 600
600 (this color)
#545FBD
oklch(52.5% 0.146 275.2)
-
Step 700
700
#4C56AC
oklch(49% 0.136 275.2)
-
Step 800
800
#3E478C
oklch(42.7% 0.113 274.9)
-
Step 900
900
#353C6F
oklch(37.7% 0.087 275.5)
-
Step 950
950
#1F2441
oklch(27.1% 0.054 274.8)
#545FBD 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) | #306CC0 | 0.046 |
| Deuteranopia (no green cones) | #2163BB | 0.050 |
| Tritanopia (no blue cones) | #1C7485 | 0.129 |
| Achromatopsia (no color) | #686868 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #545FBD
#545FBD
oklch(52.5% 0.146 275.2)
- #7E6900
#7E6900
oklch(52.6% 0.108 95.2)
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 #545FBD, closest first.
No curated palette has a color within ΔE 0.04 of #545FBD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.028
- Dark Periwinkle #665FD1 ΔE 0.041
- Slate Blue #6A5ACD ΔE 0.042
- French Blue #436BAD ΔE 0.047
- Light Indigo #6D5ACF ΔE 0.048
- Warm Blue #4B57DB ΔE 0.053
- Mid Blue #276AB3 ΔE 0.054
- Royal Blue #4169E1 ΔE 0.060
Use #545FBD 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.