#434989
Closest named color: Twilight (#4E518B). oklch(43.3% 0.105 277), rgb(67, 73, 137).
Aa
White text reads best on this color (8.22:1).
About this color
#434989 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.105 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.030 away. White text reads best on it, at 8.22:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.55:1 |
| White text | 8.22:1 |
Values
| HEX | #434989 |
| RGB | rgb(67, 73, 137) |
| HSL | hsl(235, 34%, 40%) |
| OKLCH | oklch(43.3% 0.105 277) |
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 #434989 | 8.22:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #434989 | 2.55:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #434989 text on white | 8.22:1 | AAA | Lc 88.3 | Fine for body text |
| #434989 text on black | 2.55:1 | Fails | Lc -13.9 | 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 800.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D3D8F0
oklch(88.6% 0.033 276.3)
-
Step 300
300
#B6BEE9
oklch(81% 0.061 276.7)
-
Step 400
400
#919BDD
oklch(70.7% 0.097 277)
-
Step 500
500
#7781D4
oklch(63.1% 0.125 277)
-
Step 600
600
#6169C1
oklch(55.7% 0.135 277.1)
-
Step 700
700
#5057A7
oklch(49.1% 0.126 276.9)
-
Step 800
800 (this color)
#434989
oklch(43.3% 0.105 277)
-
Step 900
900
#373C6C
oklch(37.6% 0.082 277.2)
-
Step 950
950
#20243F
oklch(27.1% 0.05 276.1)
#434989 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) | #2E528B | 0.033 |
| Deuteranopia (no green cones) | #284C88 | 0.033 |
| Tritanopia (no blue cones) | #275762 | 0.093 |
| Achromatopsia (no color) | #4F4F4F | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #434989
#434989
oklch(43.3% 0.105 277)
- #5F5000
#5F5000
oklch(43.3% 0.089 96.6)
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 #434989, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.030
- Blueberry #464196 ΔE 0.032
- Dark Slate Blue #483D8B ΔE 0.033
- Dusk Blue #26538D ΔE 0.040
- Dusk #4E5481 ΔE 0.042
- Cobalt #1E488F ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.050
- Light Navy #155084 ΔE 0.050
Use #434989 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.