#4783AB
Closest named color: Steel Blue (#4682B4). oklch(58.6% 0.088 239.8), rgb(71, 131, 171).
Aa
Black text reads best on this color (5.10:1).
About this color
#4783AB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.088 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Blue (#4682B4), ΔE 0.015 away. Black text reads best on it, at 5.10:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Steel Blue (#4682B4) |
| Black text | 5.10:1 |
| White text | 4.11:1 |
Values
| HEX | #4783AB |
| RGB | rgb(71, 131, 171) |
| HSL | hsl(204, 41%, 47%) |
| OKLCH | oklch(58.6% 0.088 239.8) |
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 #4783AB | 4.11:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #4783AB | 5.10:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #4783AB text on white | 4.11:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #4783AB text on black | 5.10:1 | AA | Lc -33.5 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CDDBE6
oklch(88.4% 0.021 241.4)
-
Step 300
300
#AAC5D8
oklch(80.9% 0.04 238.7)
-
Step 400
400
#7CA6C4
oklch(70.6% 0.063 239.9)
-
Step 500
500
#5A90B6
oklch(63.1% 0.081 240.4)
-
Step 600
600 (this color)
#4783AB
oklch(58.6% 0.088 239.8)
-
Step 700
700
#2F678A
oklch(49.2% 0.081 238.9)
-
Step 800
800
#285470
oklch(42.8% 0.067 239)
-
Step 900
900
#26455B
oklch(37.7% 0.053 241)
-
Step 950
950
#172935
oklch(27.1% 0.033 238.8)
#4783AB 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) | #7183AD | 0.048 |
| Deuteranopia (no green cones) | #6379AA | 0.039 |
| Tritanopia (no blue cones) | #008D90 | 0.068 |
| Achromatopsia (no color) | #7D7D7D | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4783AB
#4783AB
oklch(58.6% 0.088 239.8)
- #A36F44
#A36F44
oklch(58.7% 0.088 59.4)
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 #4783AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Blue #4682B4 ΔE 0.015
- Off Blue #5684AE ΔE 0.017
- Cool Blue #4984B8 ΔE 0.020
- Dusty Blue #5A86AD ΔE 0.023
- Stormy Blue #507B9C ΔE 0.028
- Cerulean #457B9D ΔE 0.028
- Blue NCS #118AB2 ΔE 0.032
- Dull Blue #49759C ΔE 0.042
Use #4783AB 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.