#345F91
Closest named color: Denim Blue (#3B5B92). oklch(47.8% 0.094 253.5), rgb(52, 95, 145).
Aa
White text reads best on this color (6.57:1).
About this color
#345F91 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.094 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.013 away. White text reads best on it, at 6.57:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.19:1 |
| White text | 6.57:1 |
Values
| HEX | #345F91 |
| RGB | rgb(52, 95, 145) |
| HSL | hsl(212, 47%, 39%) |
| OKLCH | oklch(47.8% 0.094 253.5) |
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 #345F91 | 6.57:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #345F91 | 3.19:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #345F91 text on white | 6.57:1 | AA | Lc 82.4 | Fine for body text |
| #345F91 text on black | 3.19:1 | AA large text | Lc -19.5 | 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 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
#CEDAEA
oklch(88.4% 0.026 255.6)
-
Step 300
300
#ADC3DE
oklch(80.9% 0.045 253.6)
-
Step 400
400
#81A4CE
oklch(70.8% 0.073 253.3)
-
Step 500
500
#608CC1
oklch(63% 0.094 253.7)
-
Step 600
600
#4676AD
oklch(55.7% 0.101 253)
-
Step 700
700 (this color)
#345F91
oklch(47.8% 0.094 253.5)
-
Step 800
800
#2E5179
oklch(42.8% 0.078 252.9)
-
Step 900
900
#2A4361
oklch(37.7% 0.06 253.7)
-
Step 950
950
#192739
oklch(26.9% 0.039 255.1)
#345F91 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) | #4A6293 | 0.028 |
| Deuteranopia (no green cones) | #3D5990 | 0.018 |
| Tritanopia (no blue cones) | #006B71 | 0.078 |
| Achromatopsia (no color) | #5D5D5D | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #345F91
#345F91
oklch(47.8% 0.094 253.5)
- #7D5411
#7D5411
oklch(47.9% 0.095 73.6)
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 #345F91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.013
- Denim #3B638C ΔE 0.018
- Light Navy Blue #2E5A88 ΔE 0.021
- Dusky Blue #475F94 ΔE 0.022
- Peacock Blue #016795 ΔE 0.032
- Dusk Blue #26538D ΔE 0.040
- YInMn Blue #415A77 ΔE 0.042
- Dusk #4E5481 ΔE 0.044
Use #345F91 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.