#03476F
Closest named color: Twilight Blue (#0A437A). oklch(38.2% 0.091 243), rgb(3, 71, 111).
Aa
White text reads best on this color (9.83:1).
About this color
#03476F is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.091 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.024 away. White text reads best on it, at 9.83:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.13:1 |
| White text | 9.83:1 |
Values
| HEX | #03476F |
| RGB | rgb(3, 71, 111) |
| HSL | hsl(202, 95%, 22%) |
| OKLCH | oklch(38.2% 0.091 243) |
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 #03476F | 9.83:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #03476F | 2.13:1 | Fails | Lc 11.6 | Not readable |
| #03476F text on white | 9.83:1 | AAA | Lc 92.3 | Preferred for body text |
| #03476F text on black | 2.13:1 | Fails | Lc -10.1 | 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
#DFECF6
oklch(93.6% 0.019 240.7)
-
Step 200
200
#C5DDF1
oklch(88.6% 0.038 243.3)
-
Step 300
300
#9BC6EA
oklch(80.8% 0.069 244)
-
Step 400
400
#60A8DF
oklch(70.7% 0.109 243.2)
-
Step 500
500
#2691D6
oklch(63.1% 0.139 243)
-
Step 600
600
#007ABB
oklch(55.7% 0.134 242.9)
-
Step 700
700
#00669E
oklch(49% 0.119 243.2)
-
Step 800
800
#005482
oklch(42.8% 0.102 242.4)
-
Step 900
900 (this color)
#03476F
oklch(38.2% 0.091 243)
-
Step 950
950
#072940
oklch(27% 0.057 243.1)
#03476F 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) | #344871 | 0.041 |
| Deuteranopia (no green cones) | #253F6E | 0.030 |
| Tritanopia (no blue cones) | #005155 | 0.063 |
| Achromatopsia (no color) | #434343 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03476F
#03476F
oklch(38.2% 0.091 243)
- #633700
#633700
oklch(38.3% 0.087 63.2)
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 #03476F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.024
- Dark Grey Blue #29465B ΔE 0.041
- Light Navy #155084 ΔE 0.044
- Marine Blue #01386A ΔE 0.047
- Deep Sea Blue #015482 ΔE 0.047
- Charcoal #264653 ΔE 0.051
- Cobalt #1E488F ΔE 0.058
- Dark Blue Grey #1F3B4D ΔE 0.062
Use #03476F 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.