#345C7A
Closest named color: YInMn Blue (#415A77). oklch(45.9% 0.067 242.5), rgb(52, 92, 122).
Aa
White text reads best on this color (7.09:1).
About this color
#345C7A is a medium-dark, muted blue. In OKLCH its lightness is 46%, its chroma 0.067 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.015 away. White text reads best on it, at 7.09:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.95:1 |
| White text | 7.09:1 |
Values
| HEX | #345C7A |
| RGB | rgb(52, 92, 122) |
| HSL | hsl(206, 40%, 34%) |
| OKLCH | oklch(45.9% 0.067 242.5) |
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 #345C7A | 7.09:1 | AAA | Lc -89.4 | Fine for body text |
| Black text on #345C7A | 2.95:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #345C7A text on white | 7.09:1 | AAA | Lc 84.5 | Fine for body text |
| #345C7A text on black | 2.95:1 | Fails | Lc -17.5 | 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 800.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CDDBE7
oklch(88.4% 0.022 243.8)
-
Step 300
300
#ACC4D8
oklch(80.9% 0.039 243.3)
-
Step 400
400
#7FA6C5
oklch(70.8% 0.062 242.7)
-
Step 500
500
#5D8FB6
oklch(63% 0.08 243)
-
Step 600
600
#4279A2
oklch(55.6% 0.087 242.7)
-
Step 700
700
#33668B
oklch(49.2% 0.081 242.4)
-
Step 800
800 (this color)
#345C7A
oklch(45.9% 0.067 242.5)
-
Step 900
900
#27455B
oklch(37.7% 0.052 241.8)
-
Step 950
950
#182835
oklch(26.9% 0.033 243.9)
#345C7A 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) | #4F5C7B | 0.034 |
| Deuteranopia (no green cones) | #455579 | 0.027 |
| Tritanopia (no blue cones) | #006366 | 0.055 |
| Achromatopsia (no color) | #585858 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #345C7A
#345C7A
oklch(45.9% 0.067 242.5)
- #724F2F
#724F2F
oklch(45.8% 0.066 62.4)
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 #345C7A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.015
- Light Navy Blue #2E5A88 ΔE 0.026
- Denim #3B638C ΔE 0.034
- Dusty Grape #545775 ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.042
- Dusk #4E5481 ΔE 0.042
- Petrol #005F6A ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.047
Use #345C7A 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.