#30417B
Closest named color: Twilight Blue (#0A437A). oklch(39.2% 0.1 269.1), rgb(48, 65, 123).
Aa
White text reads best on this color (9.68:1).
About this color
#30417B is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.100 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.033 away. White text reads best on it, at 9.68:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.16:1 |
| White text | 9.68:1 |
Values
| HEX | #30417B |
| RGB | rgb(48, 65, 123) |
| HSL | hsl(226, 44%, 34%) |
| OKLCH | oklch(39.2% 0.1 269.1) |
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 #30417B | 9.68:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #30417B | 2.16:1 | Fails | Lc 11.7 | Not readable |
| #30417B text on white | 9.68:1 | AAA | Lc 92.3 | Preferred for body text |
| #30417B text on black | 2.16:1 | Fails | Lc -10.2 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CED9F6
oklch(88.6% 0.042 269)
-
Step 300
300
#ADBFF2
oklch(80.9% 0.075 269.5)
-
Step 400
400
#829DEC
oklch(70.8% 0.12 268.9)
-
Step 500
500
#6482E6
oklch(63.1% 0.154 269.1)
-
Step 600
600
#4C69D4
oklch(55.6% 0.168 269)
-
Step 700
700
#3E57B8
oklch(49.2% 0.156 269.1)
-
Step 800
800
#334895
oklch(42.8% 0.129 268.9)
-
Step 900
900 (this color)
#30417B
oklch(39.2% 0.1 269.1)
-
Step 950
950
#1A2445
oklch(27% 0.063 269.2)
#30417B 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) | #26487D | 0.021 |
| Deuteranopia (no green cones) | #1B417A | 0.023 |
| Tritanopia (no blue cones) | #004E58 | 0.088 |
| Achromatopsia (no color) | #444444 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #30417B
#30417B
oklch(39.2% 0.1 269.1)
- #574300
#574300
oklch(39.3% 0.08 89.3)
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 #30417B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.033
- Cobalt #1E488F ΔE 0.038
- Light Navy #155084 ΔE 0.046
- Dark Slate Blue #483D8B ΔE 0.047
- Dusk Blue #26538D ΔE 0.055
- Blueberry #464196 ΔE 0.056
- Deep Sea Blue #015482 ΔE 0.058
- Marine Blue #01386A ΔE 0.061
Use #30417B 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.