#4B6FA8
Closest named color: Flat Blue (#3C73A8). oklch(54.1% 0.099 259.3), rgb(75, 111, 168).
Aa
White text reads best on this color (5.07:1).
About this color
#4B6FA8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.099 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Flat Blue (#3C73A8), ΔE 0.018 away. White text reads best on it, at 5.07:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Flat Blue (#3C73A8) |
| Black text | 4.13:1 |
| White text | 5.07:1 |
Values
| HEX | #4B6FA8 |
| RGB | rgb(75, 111, 168) |
| HSL | hsl(217, 38%, 48%) |
| OKLCH | oklch(54.1% 0.099 259.3) |
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 #4B6FA8 | 5.07:1 | AA | Lc -80.3 | Fine for body text |
| Black text on #4B6FA8 | 4.13:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #4B6FA8 text on white | 5.07:1 | AA | Lc 74.9 | Content text, not long reading |
| #4B6FA8 text on black | 4.13:1 | AA large text | Lc -26.8 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D0DAEA
oklch(88.6% 0.025 259.8)
-
Step 300
300
#B0C2DE
oklch(80.9% 0.044 259.2)
-
Step 400
400
#86A2CD
oklch(70.7% 0.071 258.8)
-
Step 500
500
#688AC1
oklch(63% 0.092 259.8)
-
Step 600
600 (this color)
#4B6FA8
oklch(54.1% 0.099 259.3)
-
Step 700
700
#406195
oklch(49.2% 0.092 259.2)
-
Step 800
800
#354F79
oklch(42.7% 0.077 259.6)
-
Step 900
900
#2E4261
oklch(37.7% 0.059 258.9)
-
Step 950
950
#1B2739
oklch(27.1% 0.038 258.3)
#4B6FA8 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) | #5873AA | 0.021 |
| Deuteranopia (no green cones) | #4D6AA7 | 0.014 |
| Tritanopia (no blue cones) | #127C84 | 0.088 |
| Achromatopsia (no color) | #6E6E6E | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B6FA8
#4B6FA8
oklch(54.1% 0.099 259.3)
- #8D671F
#8D671F
oklch(54% 0.099 79.2)
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 #4B6FA8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Blue #3C73A8 ΔE 0.018
- French Blue #436BAD ΔE 0.018
- Muted Blue #3B719F ΔE 0.024
- Dull Blue #49759C ΔE 0.029
- Windows Blue #3778BF ΔE 0.041
- Mid Blue #276AB3 ΔE 0.042
- Cerulean #457B9D ΔE 0.043
- Stormy Blue #507B9C ΔE 0.045
Use #4B6FA8 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.