#03435F
Closest named color: Dark Grey Blue (#29465B). oklch(36.2% 0.075 235), rgb(3, 67, 95).
Aa
White text reads best on this color (10.64:1).
About this color
#03435F is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.075 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.032 away. White text reads best on it, at 10.64:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.97:1 |
| White text | 10.64:1 |
Values
| HEX | #03435F |
| RGB | rgb(3, 67, 95) |
| HSL | hsl(198, 94%, 19%) |
| OKLCH | oklch(36.2% 0.075 235) |
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 #03435F | 10.64:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #03435F | 1.97:1 | Fails | Lc 9.7 | Not readable |
| #03435F text on white | 10.64:1 | AAA | Lc 94.2 | Preferred for body text |
| #03435F text on black | 1.97:1 | Fails | Lc -8.3 | 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
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C6DDEB
oklch(88.5% 0.031 234.5)
-
Step 300
300
#9EC7E0
oklch(80.9% 0.056 235.2)
-
Step 400
400
#65AAD1
oklch(70.7% 0.09 234.8)
-
Step 500
500
#3294C5
oklch(63.2% 0.115 234.9)
-
Step 600
600
#007DAE
oklch(55.7% 0.118 234.9)
-
Step 700
700
#006993
oklch(49.2% 0.104 234.9)
-
Step 800
800
#005679
oklch(42.8% 0.09 234.7)
-
Step 900
900 (this color)
#03435F
oklch(36.2% 0.075 235)
-
Step 950
950
#0A2A3A
oklch(27% 0.047 234.3)
#03435F 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) | #354360 | 0.045 |
| Deuteranopia (no green cones) | #293B5F | 0.036 |
| Tritanopia (no blue cones) | #004A4D | 0.045 |
| Achromatopsia (no color) | #3E3E3E | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03435F
#03435F
oklch(36.2% 0.075 235)
- #5B3111
#5B3111
oklch(36.1% 0.075 54.5)
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 #03435F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.032
- Charcoal #264653 ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.037
- Midnight Green #073B4C ΔE 0.038
- Marine Blue #01386A ΔE 0.044
- Prussian Blue #1D3557 ΔE 0.044
- Twilight Blue #0A437A ΔE 0.048
- Dark Teal #014D4E ΔE 0.051
Use #03435F 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.