#034D74
Closest named color: Deep Sea Blue (#015482). oklch(40.1% 0.091 240.5), rgb(3, 77, 116).
Aa
White text reads best on this color (9.06:1).
About this color
#034D74 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.091 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.029 away. White text reads best on it, at 9.06:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.31:1 |
| White text | 9.06:1 |
Values
| HEX | #034D74 |
| RGB | rgb(3, 77, 116) |
| HSL | hsl(201, 95%, 23%) |
| OKLCH | oklch(40.1% 0.091 240.5) |
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 #034D74 | 9.06:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #034D74 | 2.31:1 | Fails | Lc 13.6 | Not readable |
| #034D74 text on white | 9.06:1 | AAA | Lc 90.3 | Preferred for body text |
| #034D74 text on black | 2.31:1 | Fails | Lc -12.0 | 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
#C4DDF0
oklch(88.5% 0.037 240.7)
-
Step 300
300
#99C7E9
oklch(80.9% 0.068 240.7)
-
Step 400
400
#5BA9DE
oklch(70.7% 0.11 240.5)
-
Step 500
500
#1892D5
oklch(63.1% 0.14 240.7)
-
Step 600
600
#007BB7
oklch(55.7% 0.129 240.7)
-
Step 700
700
#00679A
oklch(49.1% 0.113 240.5)
-
Step 800
800
#00547F
oklch(42.6% 0.099 240.7)
-
Step 900
900 (this color)
#034D74
oklch(40.1% 0.091 240.5)
-
Step 950
950
#042940
oklch(26.9% 0.059 241.5)
#034D74 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) | #3A4E76 | 0.045 |
| Deuteranopia (no green cones) | #2B4473 | 0.035 |
| Tritanopia (no blue cones) | #00575B | 0.061 |
| Achromatopsia (no color) | #494949 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #034D74
#034D74
oklch(40.1% 0.091 240.5)
- #6B3A04
#6B3A04
oklch(40.2% 0.092 60)
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 #034D74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.029
- Light Navy #155084 ΔE 0.030
- Twilight Blue #0A437A ΔE 0.034
- Dark Grey Blue #29465B ΔE 0.046
- Dusk Blue #26538D ΔE 0.051
- Cobalt #1E488F ΔE 0.053
- Charcoal #264653 ΔE 0.056
- Deep Teal #00555A ΔE 0.058
Use #034D74 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.