#547ABB
Closest named color: Windows Blue (#3778BF). oklch(58.1% 0.109 260.6), rgb(84, 122, 187).
Aa
Black text reads best on this color (4.87:1).
About this color
#547ABB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.109 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.030 away. Black text reads best on it, at 4.87:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.87:1 |
| White text | 4.30:1 |
Values
| HEX | #547ABB |
| RGB | rgb(84, 122, 187) |
| HSL | hsl(218, 43%, 53%) |
| OKLCH | oklch(58.1% 0.109 260.6) |
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 #547ABB | 4.30:1 | AA large text | Lc -75.1 | Fine for body text |
| Black text on #547ABB | 4.87:1 | AA | Lc 34.4 | Non-text elements, placeholder text |
| #547ABB text on white | 4.30:1 | AA large text | Lc 69.6 | Content text, not long reading |
| #547ABB text on black | 4.87:1 | AA | Lc -32.0 | 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 600.
-
Step 50
50
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CFDAEC
oklch(88.5% 0.028 260.3)
-
Step 300
300
#AFC2E1
oklch(81% 0.049 260.2)
-
Step 400
400
#84A2D2
oklch(70.8% 0.078 259.7)
-
Step 500
500
#668AC6
oklch(63.2% 0.1 260.3)
-
Step 600
600 (this color)
#547ABB
oklch(58.1% 0.109 260.6)
-
Step 700
700
#3E609A
oklch(49.1% 0.102 260.5)
-
Step 800
800
#334E7D
oklch(42.6% 0.085 260.9)
-
Step 900
900
#2D4164
oklch(37.6% 0.066 261.1)
-
Step 950
950
#1B263B
oklch(26.9% 0.042 262.7)
#547ABB 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) | #607FBE | 0.021 |
| Deuteranopia (no green cones) | #5375BA | 0.014 |
| Tritanopia (no blue cones) | #158892 | 0.097 |
| Achromatopsia (no color) | #7A7A7A | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #547ABB
#547ABB
oklch(58.1% 0.109 260.6)
- #9C721D
#9C721D
oklch(58% 0.11 80.1)
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 #547ABB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.030
- Steel Blue #4682B4 ΔE 0.030
- Cool Blue #4984B8 ΔE 0.030
- Off Blue #5684AE ΔE 0.039
- Flat Blue #3C73A8 ΔE 0.044
- Dusty Blue #5A86AD ΔE 0.046
- Stormy Blue #507B9C ΔE 0.051
- French Blue #436BAD ΔE 0.051
Use #547ABB 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.