#547DAF
Closest named color: Steel Blue (#4682B4). oklch(58.1% 0.09 254), rgb(84, 125, 175).
Aa
Black text reads best on this color (4.92:1).
About this color
#547DAF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.090 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Blue (#4682B4), ΔE 0.018 away. Black text reads best on it, at 4.92:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Steel Blue (#4682B4) |
| Black text | 4.92:1 |
| White text | 4.26:1 |
Values
| HEX | #547DAF |
| RGB | rgb(84, 125, 175) |
| HSL | hsl(213, 36%, 51%) |
| OKLCH | oklch(58.1% 0.09 254) |
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 #547DAF | 4.26:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #547DAF | 4.92:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #547DAF text on white | 4.26:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #547DAF text on black | 4.92:1 | AA | Lc -32.3 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#CFDAE8
oklch(88.4% 0.023 254.4)
-
Step 300
300
#AFC3DB
oklch(81% 0.04 253.1)
-
Step 400
400
#85A3C9
oklch(70.7% 0.065 254.6)
-
Step 500
500
#668CBB
oklch(63.1% 0.083 254.2)
-
Step 600
600 (this color)
#547DAF
oklch(58.1% 0.09 254)
-
Step 700
700
#3E638F
oklch(49.2% 0.083 253.6)
-
Step 800
800
#335174
oklch(42.8% 0.069 253.1)
-
Step 900
900
#2D435E
oklch(37.7% 0.054 254.1)
-
Step 950
950
#1B2737
oklch(26.9% 0.034 255.8)
#547DAF 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) | #697FB1 | 0.027 |
| Deuteranopia (no green cones) | #5E77AE | 0.019 |
| Tritanopia (no blue cones) | #25888E | 0.079 |
| Achromatopsia (no color) | #7B7B7B | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #547DAF
#547DAF
oklch(58.1% 0.09 254)
- #9A7239
#9A7239
oklch(58% 0.09 74.1)
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 #547DAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Blue #4682B4 ΔE 0.018
- Off Blue #5684AE ΔE 0.021
- Cool Blue #4984B8 ΔE 0.022
- Dusty Blue #5A86AD ΔE 0.029
- Stormy Blue #507B9C ΔE 0.030
- Cerulean #457B9D ΔE 0.034
- Dull Blue #49759C ΔE 0.037
- Flat Blue #3C73A8 ΔE 0.041
Use #547DAF 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.