#45688B
Closest named color: Denim (#3B638C). oklch(50.6% 0.069 249.3), rgb(69, 104, 139).
Aa
White text reads best on this color (5.82:1).
About this color
#45688B is a medium-dark, muted blue. In OKLCH its lightness is 51%, its chroma 0.069 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.020 away. White text reads best on it, at 5.82:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.60:1 |
| White text | 5.82:1 |
Values
| HEX | #45688B |
| RGB | rgb(69, 104, 139) |
| HSL | hsl(210, 34%, 41%) |
| OKLCH | oklch(50.6% 0.069 249.3) |
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 #45688B | 5.82:1 | AA | Lc -84.3 | Fine for body text |
| Black text on #45688B | 3.60:1 | AA large text | Lc 25.0 | Dividers and decoration only |
| #45688B text on white | 5.82:1 | AA | Lc 79.0 | Fine for body text |
| #45688B text on black | 3.60:1 | AA large text | Lc -22.8 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EAF0
oklch(93.5% 0.01 252.8)
-
Step 200
200
#D0DAE5
oklch(88.4% 0.019 250.6)
-
Step 300
300
#B1C3D6
oklch(81% 0.033 249.7)
-
Step 400
400
#87A4C1
oklch(70.7% 0.053 248.6)
-
Step 500
500
#698DB2
oklch(63.1% 0.069 249.7)
-
Step 600
600
#50779D
oklch(55.6% 0.074 248.7)
-
Step 700
700 (this color)
#45688B
oklch(50.6% 0.069 249.3)
-
Step 800
800
#36516D
oklch(42.6% 0.057 250.2)
-
Step 900
900
#2F4459
oklch(37.8% 0.045 249.1)
-
Step 950
950
#1C2834
oklch(27.1% 0.028 248.9)
#45688B 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) | #5A698D | 0.028 |
| Deuteranopia (no green cones) | #51628A | 0.021 |
| Tritanopia (no blue cones) | #247074 | 0.059 |
| Achromatopsia (no color) | #656565 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45688B
#45688B
oklch(50.6% 0.069 249.3)
- #7F5E37
#7F5E37
oklch(50.7% 0.07 69.8)
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 #45688B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.020
- Dusky Blue #475F94 ΔE 0.034
- Muted Blue #3B719F ΔE 0.036
- Metallic Blue #4F738E ΔE 0.036
- Slate #516572 ΔE 0.040
- Dull Blue #49759C ΔE 0.042
- Denim Blue #3B5B92 ΔE 0.046
- Peacock Blue #016795 ΔE 0.046
Use #45688B 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.