#034587
Closest named color: Twilight Blue (#0A437A). oklch(39.4% 0.125 254.6), rgb(3, 69, 135).
Aa
White text reads best on this color (9.52:1).
About this color
#034587 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.125 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.022 away. White text reads best on it, at 9.52:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.20:1 |
| White text | 9.52:1 |
Values
| HEX | #034587 |
| RGB | rgb(3, 69, 135) |
| HSL | hsl(210, 96%, 27%) |
| OKLCH | oklch(39.4% 0.125 254.6) |
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 #034587 | 9.52:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #034587 | 2.20:1 | Fails | Lc 12.5 | Not readable |
| #034587 text on white | 9.52:1 | AAA | Lc 91.4 | Preferred for body text |
| #034587 text on black | 2.20:1 | Fails | Lc -10.9 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFC
oklch(93.5% 0.027 255.1)
-
Step 200
200
#C2DCFC
oklch(88.6% 0.052 253.7)
-
Step 300
300
#97C4FD
oklch(80.9% 0.094 254.6)
-
Step 400
400
#5AA3FC
oklch(70.8% 0.15 254.6)
-
Step 500
500
#1C88F9
oklch(63.1% 0.192 254.5)
-
Step 600
600
#0071D9
oklch(55.6% 0.181 254.6)
-
Step 700
700
#005FB8
oklch(49.1% 0.16 254.6)
-
Step 800
800
#004D98
oklch(42.6% 0.139 254.8)
-
Step 900
900 (this color)
#034587
oklch(39.4% 0.125 254.6)
-
Step 950
950
#05264C
oklch(27% 0.08 254.9)
#034587 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) | #1E4B89 | 0.025 |
| Deuteranopia (no green cones) | #004086 | 0.015 |
| Tritanopia (no blue cones) | #00555F | 0.093 |
| Achromatopsia (no color) | #454545 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #034587
#034587
oklch(39.4% 0.125 254.6)
- #603E00
#603E00
oklch(39.4% 0.083 74.2)
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 #034587, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.022
- Cobalt #1E488F ΔE 0.023
- Light Navy #155084 ΔE 0.036
- Deep Sea Blue #015482 ΔE 0.047
- Dusk Blue #26538D ΔE 0.050
- Marine Blue #01386A ΔE 0.060
- Sapphire #2138AB ΔE 0.070
- Blueberry #464196 ΔE 0.071
Use #034587 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.