#4368A3
Closest named color: French Blue (#436BAD). oklch(51.7% 0.103 259.4), rgb(67, 104, 163).
Aa
White text reads best on this color (5.60:1).
About this color
#4368A3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.103 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.017 away. White text reads best on it, at 5.60:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.74:1 |
| White text | 5.60:1 |
Values
| HEX | #4368A3 |
| RGB | rgb(67, 104, 163) |
| HSL | hsl(217, 42%, 45%) |
| OKLCH | oklch(51.7% 0.103 259.4) |
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 #4368A3 | 5.60:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #4368A3 | 3.74:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #4368A3 text on white | 5.60:1 | AA | Lc 77.8 | Fine for body text |
| #4368A3 text on black | 3.74:1 | AA large text | Lc -23.9 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAEC
oklch(88.5% 0.028 258.4)
-
Step 300
300
#AEC2E1
oklch(80.9% 0.049 259.1)
-
Step 400
400
#83A2D3
oklch(70.7% 0.08 259.4)
-
Step 500
500
#648AC7
oklch(63.1% 0.102 259.6)
-
Step 600
600
#4B73B4
oklch(55.6% 0.111 259.7)
-
Step 700
700 (this color)
#4368A3
oklch(51.7% 0.103 259.4)
-
Step 800
800
#324F7D
oklch(42.8% 0.084 259.3)
-
Step 900
900
#2C4265
oklch(37.8% 0.066 259.4)
-
Step 950
950
#1A273B
oklch(27.1% 0.042 258.8)
#4368A3 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) | #506DA5 | 0.022 |
| Deuteranopia (no green cones) | #4364A2 | 0.011 |
| Tritanopia (no blue cones) | #00757E | 0.089 |
| Achromatopsia (no color) | #686868 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4368A3
#4368A3
oklch(51.7% 0.103 259.4)
- #87600D
#87600D
oklch(51.7% 0.103 79.5)
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 #4368A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.017
- Muted Blue #3B719F ΔE 0.029
- Flat Blue #3C73A8 ΔE 0.031
- Dusky Blue #475F94 ΔE 0.031
- Mid Blue #276AB3 ΔE 0.033
- Denim #3B638C ΔE 0.039
- Dull Blue #49759C ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.045
Use #4368A3 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.