#034D70
Closest named color: Deep Sea Blue (#015482). oklch(39.9% 0.087 237.7), rgb(3, 77, 112).
Aa
White text reads best on this color (9.13:1).
About this color
#034D70 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.087 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.034 away. White text reads best on it, at 9.13:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.29:1 |
| White text | 9.13:1 |
Values
| HEX | #034D70 |
| RGB | rgb(3, 77, 112) |
| HSL | hsl(199, 95%, 23%) |
| OKLCH | oklch(39.9% 0.087 237.7) |
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 #034D70 | 9.13:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #034D70 | 2.29:1 | Fails | Lc 13.4 | Not readable |
| #034D70 text on white | 9.13:1 | AAA | Lc 90.5 | Preferred for body text |
| #034D70 text on black | 2.29:1 | Fails | Lc -11.8 | 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
#DFECF5
oklch(93.6% 0.018 237.8)
-
Step 200
200
#C4DDEF
oklch(88.5% 0.036 239.2)
-
Step 300
300
#99C7E6
oklch(80.8% 0.065 238.1)
-
Step 400
400
#5CAADA
oklch(70.7% 0.104 237.7)
-
Step 500
500
#1A93CF
oklch(63% 0.132 237.7)
-
Step 600
600
#007CB2
oklch(55.6% 0.123 237.7)
-
Step 700
700
#006896
oklch(49.1% 0.108 237.6)
-
Step 800
800
#00557C
oklch(42.7% 0.094 237.9)
-
Step 900
900 (this color)
#034D70
oklch(39.9% 0.087 237.7)
-
Step 950
950
#052A3E
oklch(27.1% 0.055 237.7)
#034D70 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) | #3C4D72 | 0.048 |
| Deuteranopia (no green cones) | #2E446F | 0.038 |
| Tritanopia (no blue cones) | #005659 | 0.056 |
| Achromatopsia (no color) | #484848 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #034D70
#034D70
oklch(39.9% 0.087 237.7)
- #693A0E
#693A0E
oklch(39.9% 0.086 58.3)
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 #034D70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.034
- Light Navy #155084 ΔE 0.036
- Twilight Blue #0A437A ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.041
- Charcoal #264653 ΔE 0.050
- Deep Teal #00555A ΔE 0.052
- Dusk Blue #26538D ΔE 0.057
- Cobalt #1E488F ΔE 0.059
Use #034D70 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.