#547CBF
Closest named color: Cool Blue (#4984B8). oklch(58.7% 0.113 260.2), rgb(84, 124, 191).
Aa
Black text reads best on this color (5.01:1).
About this color
#547CBF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.113 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.029 away. Black text reads best on it, at 5.01:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.01:1 |
| White text | 4.18:1 |
Values
| HEX | #547CBF |
| RGB | rgb(84, 124, 191) |
| HSL | hsl(218, 46%, 54%) |
| OKLCH | oklch(58.7% 0.113 260.2) |
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 #547CBF | 4.18:1 | AA large text | Lc -74.2 | Content text, not long reading |
| Black text on #547CBF | 5.01:1 | AA | Lc 35.4 | Non-text elements, placeholder text |
| #547CBF text on white | 4.18:1 | AA large text | Lc 68.7 | Content text, not long reading |
| #547CBF text on black | 5.01:1 | AA | Lc -32.9 | 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
#AEC2E2
oklch(81% 0.05 259.8)
-
Step 400
400
#83A2D4
oklch(70.8% 0.081 259.8)
-
Step 500
500
#648AC8
oklch(63.2% 0.103 259.9)
-
Step 600
600 (this color)
#547CBF
oklch(58.7% 0.113 260.2)
-
Step 700
700
#3C609C
oklch(49.1% 0.105 260.1)
-
Step 800
800
#324E7E
oklch(42.6% 0.087 260.6)
-
Step 900
900
#2C4165
oklch(37.6% 0.068 260.7)
-
Step 950
950
#1A273B
oklch(27.1% 0.042 258.8)
#547CBF 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) | #6181C2 | 0.022 |
| Deuteranopia (no green cones) | #5377BE | 0.014 |
| Tritanopia (no blue cones) | #098B94 | 0.102 |
| Achromatopsia (no color) | #7C7C7C | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #547CBF
#547CBF
oklch(58.7% 0.113 260.2)
- #9F741A
#9F741A
oklch(58.7% 0.113 80.4)
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 #547CBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.029
- Steel Blue #4682B4 ΔE 0.030
- Windows Blue #3778BF ΔE 0.032
- Off Blue #5684AE ΔE 0.039
- Dusty Blue #5A86AD ΔE 0.046
- Water Blue #0E87CC ΔE 0.049
- Flat Blue #3C73A8 ΔE 0.050
- Faded Blue #658CBB ΔE 0.053
Use #547CBF 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.