#034D72
Closest named color: Deep Sea Blue (#015482). oklch(40% 0.089 239.2), rgb(3, 77, 114).
Aa
White text reads best on this color (9.09:1).
About this color
#034D72 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.089 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.031 away. White text reads best on it, at 9.09:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.30:1 |
| White text | 9.09:1 |
Values
| HEX | #034D72 |
| RGB | rgb(3, 77, 114) |
| HSL | hsl(200, 95%, 23%) |
| OKLCH | oklch(40% 0.089 239.2) |
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 #034D72 | 9.09:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #034D72 | 2.30:1 | Fails | Lc 13.5 | Not readable |
| #034D72 text on white | 9.09:1 | AAA | Lc 90.4 | Preferred for body text |
| #034D72 text on black | 2.30:1 | Fails | Lc -11.9 | Not readable |
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 900.
-
Step 50
50
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF6
oklch(93.6% 0.019 240.7)
-
Step 200
200
#C4DDEF
oklch(88.5% 0.036 239.2)
-
Step 300
300
#99C7E7
oklch(80.8% 0.066 239)
-
Step 400
400
#5CA9DC
oklch(70.6% 0.107 239.7)
-
Step 500
500
#1993D2
oklch(63.1% 0.136 238.9)
-
Step 600
600
#007BB4
oklch(55.5% 0.126 239.3)
-
Step 700
700
#006898
oklch(49.2% 0.11 238.7)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900 (this color)
#034D72
oklch(40% 0.089 239.2)
-
Step 950
950
#042A3F
oklch(27.1% 0.056 238.5)
#034D72 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) | #3B4D74 | 0.046 |
| Deuteranopia (no green cones) | #2D4471 | 0.037 |
| Tritanopia (no blue cones) | #00565A | 0.057 |
| Achromatopsia (no color) | #484848 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #034D72
#034D72
oklch(40% 0.089 239.2)
- #6A3A09
#6A3A09
oklch(40% 0.089 59.2)
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 #034D72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.031
- Light Navy #155084 ΔE 0.033
- Twilight Blue #0A437A ΔE 0.036
- Dark Grey Blue #29465B ΔE 0.043
- Charcoal #264653 ΔE 0.053
- Dusk Blue #26538D ΔE 0.054
- Deep Teal #00555A ΔE 0.055
- Cobalt #1E488F ΔE 0.056
Use #034D72 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.