#3B689A
Closest named color: Denim (#3B638C). oklch(50.8% 0.094 252.4), rgb(59, 104, 154).
Aa
White text reads best on this color (5.78:1).
About this color
#3B689A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.094 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.024 away. White text reads best on it, at 5.78:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.63:1 |
| White text | 5.78:1 |
Values
| HEX | #3B689A |
| RGB | rgb(59, 104, 154) |
| HSL | hsl(212, 45%, 42%) |
| OKLCH | oklch(50.8% 0.094 252.4) |
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 #3B689A | 5.78:1 | AA | Lc -84.0 | Fine for body text |
| Black text on #3B689A | 3.63:1 | AA large text | Lc 25.3 | Dividers and decoration only |
| #3B689A text on white | 5.78:1 | AA | Lc 78.7 | Fine for body text |
| #3B689A text on black | 3.63:1 | AA large text | Lc -23.1 | 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
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CEDBEA
oklch(88.6% 0.025 251.9)
-
Step 300
300
#ACC3DE
oklch(80.9% 0.046 252.5)
-
Step 400
400
#80A4CD
oklch(70.7% 0.072 252.1)
-
Step 500
500
#5F8DC1
oklch(63.2% 0.094 252.3)
-
Step 600
600
#4576AD
oklch(55.6% 0.101 252.5)
-
Step 700
700 (this color)
#3B689A
oklch(50.8% 0.094 252.4)
-
Step 800
800
#2D5179
oklch(42.7% 0.079 252.4)
-
Step 900
900
#294361
oklch(37.6% 0.061 252.9)
-
Step 950
950
#182839
oklch(27.1% 0.038 250.8)
#3B689A 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) | #536B9C | 0.030 |
| Deuteranopia (no green cones) | #466199 | 0.022 |
| Tritanopia (no blue cones) | #00747A | 0.079 |
| Achromatopsia (no color) | #666666 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B689A
#3B689A
oklch(50.8% 0.094 252.4)
- #865C1E
#865C1E
oklch(50.8% 0.094 72.7)
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 #3B689A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.024
- Muted Blue #3B719F ΔE 0.026
- Dusky Blue #475F94 ΔE 0.027
- French Blue #436BAD ΔE 0.032
- Flat Blue #3C73A8 ΔE 0.035
- Peacock Blue #016795 ΔE 0.035
- Ocean Blue #03719C ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.038
Use #3B689A 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.