#43709F
Closest named color: Muted Blue (#3B719F). oklch(53.4% 0.09 250.8), rgb(67, 112, 159).
Aa
White text reads best on this color (5.17:1).
About this color
#43709F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.090 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.008 away. White text reads best on it, at 5.17:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 4.05:1 |
| White text | 5.17:1 |
Values
| HEX | #43709F |
| RGB | rgb(67, 112, 159) |
| HSL | hsl(211, 41%, 44%) |
| OKLCH | oklch(53.4% 0.09 250.8) |
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 #43709F | 5.17:1 | AA | Lc -80.9 | Fine for body text |
| Black text on #43709F | 4.05:1 | AA large text | Lc 28.6 | Dividers and decoration only |
| #43709F text on white | 5.17:1 | AA | Lc 75.5 | Fine for body text |
| #43709F text on black | 4.05:1 | AA large text | Lc -26.2 | 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 600.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CFDBE8
oklch(88.6% 0.022 250.2)
-
Step 300
300
#AEC3DA
oklch(80.9% 0.04 250.7)
-
Step 400
400
#83A4C8
oklch(70.7% 0.064 250.9)
-
Step 500
500
#638DBA
oklch(63.1% 0.083 250.9)
-
Step 600
600 (this color)
#43709F
oklch(53.4% 0.09 250.8)
-
Step 700
700
#3A648E
oklch(49.2% 0.083 249.8)
-
Step 800
800
#315174
oklch(42.7% 0.07 251.7)
-
Step 900
900
#2B445D
oklch(37.8% 0.053 249.4)
-
Step 950
950
#1A2837
oklch(27.1% 0.034 250.8)
#43709F 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) | #5C72A1 | 0.031 |
| Deuteranopia (no green cones) | #50699E | 0.023 |
| Tritanopia (no blue cones) | #007B80 | 0.077 |
| Achromatopsia (no color) | #6D6D6D | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43709F
#43709F
oklch(53.4% 0.09 250.8)
- #8D632C
#8D632C
oklch(53.3% 0.089 71)
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 #43709F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.008
- Flat Blue #3C73A8 ΔE 0.015
- Dull Blue #49759C ΔE 0.019
- French Blue #436BAD ΔE 0.029
- Metallic Blue #4F738E ΔE 0.033
- Cerulean #457B9D ΔE 0.034
- Ocean Blue #03719C ΔE 0.038
- Stormy Blue #507B9C ΔE 0.039
Use #43709F 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.