#034AA9
Closest named color: Sapphire (#2138AB). oklch(43.3% 0.165 259), rgb(3, 74, 169).
Aa
White text reads best on this color (8.21:1).
About this color
#034AA9 is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.165 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.042 away. White text reads best on it, at 8.21:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.165) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.55:1 |
| White text | 8.21:1 |
Values
| HEX | #034AA9 |
| RGB | rgb(3, 74, 169) |
| HSL | hsl(214, 97%, 34%) |
| OKLCH | oklch(43.3% 0.165 259) |
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 #034AA9 | 8.21:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #034AA9 | 2.55:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #034AA9 text on white | 8.21:1 | AAA | Lc 87.6 | Fine for body text |
| #034AA9 text on black | 2.55:1 | Fails | Lc -14.5 | 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 800.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C4DBFD
oklch(88.5% 0.053 258)
-
Step 300
300
#9BC2FF
oklch(80.8% 0.097 259.2)
-
Step 400
400
#63A0FF
oklch(70.7% 0.154 259)
-
Step 500
500
#3484FE
oklch(63.1% 0.198 259)
-
Step 600
600
#026AED
oklch(55.6% 0.214 258.9)
-
Step 700
700
#0058CA
oklch(49.1% 0.191 259.1)
-
Step 800
800 (this color)
#034AA9
oklch(43.3% 0.165 259)
-
Step 900
900
#0E3E84
oklch(37.8% 0.128 258.8)
-
Step 950
950
#0A254D
oklch(27% 0.081 258.5)
#034AA9 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) | #0056AC | 0.032 |
| Deuteranopia (no green cones) | #0048A7 | 0.006 |
| Tritanopia (no blue cones) | #006272 | 0.125 |
| Achromatopsia (no color) | #4F4F4F | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #034AA9
#034AA9
oklch(43.3% 0.165 259)
- #6B4A00
#6B4A00
oklch(43.4% 0.09 79.3)
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 #034AA9, closest first.
No curated palette has a color within ΔE 0.04 of #034AA9.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.042
- Cobalt #1E488F ΔE 0.043
- Blue Blue #2242C7 ΔE 0.053
- Dusk Blue #26538D ΔE 0.058
- Light Navy #155084 ΔE 0.065
- Blueberry #464196 ΔE 0.066
- Deep Sea Blue #015482 ΔE 0.073
- Majorelle Blue #3F37C9 ΔE 0.077
Use #034AA9 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.