#4B689C
Closest named color: French Blue (#436BAD). oklch(51.8% 0.09 261.5), rgb(75, 104, 156).
Aa
White text reads best on this color (5.58:1).
About this color
#4B689C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.090 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.027 away. White text reads best on it, at 5.58:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.75:1 |
| White text | 5.58:1 |
Values
| HEX | #4B689C |
| RGB | rgb(75, 104, 156) |
| HSL | hsl(219, 35%, 45%) |
| OKLCH | oklch(51.8% 0.09 261.5) |
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 #4B689C | 5.58:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #4B689C | 3.75:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #4B689C text on white | 5.58:1 | AA | Lc 77.8 | Fine for body text |
| #4B689C text on black | 3.75:1 | AA large text | Lc -24.0 | 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 700.
-
Step 50
50
#F3F5F9
oklch(97% 0.006 264.5)
-
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
#B1C1DD
oklch(80.8% 0.043 261.7)
-
Step 400
400
#89A1CD
oklch(70.7% 0.07 262.4)
-
Step 500
500
#6B8ABF
oklch(63.1% 0.088 260.8)
-
Step 600
600
#5373AC
oklch(55.6% 0.097 261.4)
-
Step 700
700 (this color)
#4B689C
oklch(51.8% 0.09 261.5)
-
Step 800
800
#384F78
oklch(42.8% 0.074 261.4)
-
Step 900
900
#304260
oklch(37.8% 0.057 260.3)
-
Step 950
950
#1C2638
oklch(26.8% 0.037 261.8)
#4B689C 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) | #546C9E | 0.017 |
| Deuteranopia (no green cones) | #4A649B | 0.012 |
| Tritanopia (no blue cones) | #25737B | 0.079 |
| Achromatopsia (no color) | #686868 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B689C
#4B689C
oklch(51.8% 0.09 261.5)
- #826323
#826323
oklch(51.9% 0.09 82.2)
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 #4B689C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.027
- Dusky Blue #475F94 ΔE 0.028
- Muted Blue #3B719F ΔE 0.028
- Flat Blue #3C73A8 ΔE 0.034
- Denim #3B638C ΔE 0.035
- Dull Blue #49759C ΔE 0.038
- Metallic Blue #4F738E ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.045
Use #4B689C 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.