#034A66
Closest named color: Dark Grey Blue (#29465B). oklch(38.5% 0.078 232.6), rgb(3, 74, 102).
Aa
White text reads best on this color (9.65:1).
About this color
#034A66 is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.078 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.029 away. White text reads best on it, at 9.65:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.17:1 |
| White text | 9.65:1 |
Values
| HEX | #034A66 |
| RGB | rgb(3, 74, 102) |
| HSL | hsl(197, 94%, 21%) |
| OKLCH | oklch(38.5% 0.078 232.6) |
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 #034A66 | 9.65:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #034A66 | 2.17:1 | Fails | Lc 12.0 | Not readable |
| #034A66 text on white | 9.65:1 | AAA | Lc 91.9 | Preferred for body text |
| #034A66 text on black | 2.17:1 | Fails | Lc -10.5 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#DFECF3
oklch(93.5% 0.017 230.9)
-
Step 200
200
#C5DDEB
oklch(88.4% 0.032 233.3)
-
Step 300
300
#9BC8E0
oklch(80.9% 0.058 231.7)
-
Step 400
400
#60ABD1
oklch(70.7% 0.093 232.2)
-
Step 500
500
#2595C5
oklch(63.1% 0.119 232.4)
-
Step 600
600
#007DAB
oklch(55.5% 0.115 233.2)
-
Step 700
700
#006990
oklch(49% 0.101 232.9)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900 (this color)
#034A66
oklch(38.5% 0.078 232.6)
-
Step 950
950
#072A3A
oklch(26.9% 0.049 232.7)
#034A66 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) | #3C4967 | 0.050 |
| Deuteranopia (no green cones) | #2F4166 | 0.041 |
| Tritanopia (no blue cones) | #005154 | 0.044 |
| Achromatopsia (no color) | #454545 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #034A66
#034A66
oklch(38.5% 0.078 232.6)
- #633617
#633617
oklch(38.3% 0.078 52.6)
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 #034A66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.029
- Charcoal #264653 ΔE 0.036
- Twilight Blue #0A437A ΔE 0.045
- Dark Teal #014D4E ΔE 0.046
- Deep Teal #00555A ΔE 0.047
- Deep Sea Blue #015482 ΔE 0.052
- Light Navy #155084 ΔE 0.053
- Dark Slate Gray #2F4F4F ΔE 0.056
Use #034A66 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.