#436B97
Closest named color: Muted Blue (#3B719F). oklch(51.8% 0.083 251.8), rgb(67, 107, 151).
Aa
White text reads best on this color (5.54:1).
About this color
#436B97 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.083 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.019 away. White text reads best on it, at 5.54:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 3.78:1 |
| White text | 5.54:1 |
Values
| HEX | #436B97 |
| RGB | rgb(67, 107, 151) |
| HSL | hsl(211, 39%, 43%) |
| OKLCH | oklch(51.8% 0.083 251.8) |
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 #436B97 | 5.54:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #436B97 | 3.78:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #436B97 text on white | 5.54:1 | AA | Lc 77.6 | Fine for body text |
| #436B97 text on black | 3.78:1 | AA large text | Lc -24.2 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CFDAE8
oklch(88.4% 0.023 254.4)
-
Step 300
300
#AEC3DB
oklch(80.9% 0.041 251.8)
-
Step 400
400
#83A4C8
oklch(70.7% 0.064 250.9)
-
Step 500
500
#648DBA
oklch(63.1% 0.082 251.4)
-
Step 600
600
#4A76A6
oklch(55.5% 0.09 251.7)
-
Step 700
700 (this color)
#436B97
oklch(51.8% 0.083 251.8)
-
Step 800
800
#325174
oklch(42.7% 0.069 252.4)
-
Step 900
900
#2C435D
oklch(37.6% 0.053 252.2)
-
Step 950
950
#1A2837
oklch(27.1% 0.034 250.8)
#436B97 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) | #596D99 | 0.028 |
| Deuteranopia (no green cones) | #4E6596 | 0.020 |
| Tritanopia (no blue cones) | #0D757A | 0.073 |
| Achromatopsia (no color) | #686868 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #436B97
#436B97
oklch(51.8% 0.083 251.8)
- #86602D
#86602D
oklch(51.8% 0.084 72.1)
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 #436B97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.019
- Denim #3B638C ΔE 0.029
- Dull Blue #49759C ΔE 0.031
- Flat Blue #3C73A8 ΔE 0.031
- Dusky Blue #475F94 ΔE 0.034
- Metallic Blue #4F738E ΔE 0.035
- French Blue #436BAD ΔE 0.035
- Ocean Blue #03719C ΔE 0.038
Use #436B97 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.