#345D77
Closest named color: YInMn Blue (#415A77). oklch(46% 0.063 238), rgb(52, 93, 119).
Aa
White text reads best on this color (7.05:1).
About this color
#345D77 is a medium-dark, muted blue. In OKLCH its lightness is 46%, its chroma 0.063 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.016 away. White text reads best on it, at 7.05:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.97:1 |
| White text | 7.05:1 |
Values
| HEX | #345D77 |
| RGB | rgb(52, 93, 119) |
| HSL | hsl(203, 39%, 34%) |
| OKLCH | oklch(46% 0.063 238) |
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 #345D77 | 7.05:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #345D77 | 2.97:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #345D77 text on white | 7.05:1 | AAA | Lc 84.3 | Fine for body text |
| #345D77 text on black | 2.97:1 | Fails | Lc -17.7 | 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
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#CFDBE3
oklch(88.5% 0.017 236.7)
-
Step 300
300
#AFC4D2
oklch(80.9% 0.03 237)
-
Step 400
400
#85A6BC
oklch(70.8% 0.049 237.6)
-
Step 500
500
#668FAB
oklch(63.1% 0.062 238.9)
-
Step 600
600
#4C7996
oklch(55.5% 0.067 237.9)
-
Step 700
700 (this color)
#345D77
oklch(46% 0.063 238)
-
Step 800
800
#335368
oklch(42.7% 0.051 238.4)
-
Step 900
900
#2D4555
oklch(37.8% 0.04 238.4)
-
Step 950
950
#1A2832
oklch(26.9% 0.027 240.1)
#345D77 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) | #515D78 | 0.036 |
| Deuteranopia (no green cones) | #485677 | 0.030 |
| Tritanopia (no blue cones) | #066466 | 0.050 |
| Achromatopsia (no color) | #595959 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #345D77
#345D77
oklch(46% 0.063 238)
- #724F34
#724F34
oklch(45.9% 0.062 58.1)
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 #345D77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.016
- Light Navy Blue #2E5A88 ΔE 0.032
- Denim #3B638C ΔE 0.037
- Petrol #005F6A ΔE 0.041
- Dusty Grape #545775 ΔE 0.042
- Dusk #4E5481 ΔE 0.047
- Slate #516572 ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.048
Use #345D77 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.