#033586
Closest named color: Twilight Blue (#0A437A). oklch(35.7% 0.145 260.5), rgb(3, 53, 134).
Aa
White text reads best on this color (11.30:1).
About this color
#033586 is a dark, vivid blue. In OKLCH its lightness is 36%, its chroma 0.145 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.047 away. White text reads best on it, at 11.30:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 1.85:1 |
| White text | 11.30:1 |
Values
| HEX | #033586 |
| RGB | rgb(3, 53, 134) |
| HSL | hsl(217, 96%, 27%) |
| OKLCH | oklch(35.7% 0.145 260.5) |
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 #033586 | 11.30:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #033586 | 1.85:1 | Fails | Lc 8.6 | Not readable |
| #033586 text on white | 11.30:1 | AAA | Lc 95.3 | Preferred for body text |
| #033586 text on black | 1.85:1 | Fails | Lc -7.3 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DEEBFF
oklch(93.6% 0.031 258.9)
-
Step 200
200
#C4DAFF
oklch(88.4% 0.057 260.8)
-
Step 300
300
#9DC2FF
oklch(81% 0.096 260.2)
-
Step 400
400
#679FFF
oklch(70.7% 0.153 260.6)
-
Step 500
500
#3B83FF
oklch(63.1% 0.198 260.5)
-
Step 600
600
#0065F8
oklch(55.6% 0.233 260.5)
-
Step 700
700
#0055D2
oklch(49.1% 0.205 260.4)
-
Step 800
800
#0045AE
oklch(42.7% 0.178 260.4)
-
Step 900
900 (this color)
#033586
oklch(35.7% 0.145 260.5)
-
Step 950
950
#082352
oklch(26.9% 0.092 260.7)
#033586 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) | #004089 | 0.030 |
| Deuteranopia (no green cones) | #003584 | 0.004 |
| Tritanopia (no blue cones) | #004A58 | 0.110 |
| Achromatopsia (no color) | #3A3A3A | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #033586
#033586
oklch(35.7% 0.145 260.5)
- #503700
#503700
oklch(35.6% 0.074 80.3)
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 #033586, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.047
- Marine Blue #01386A ΔE 0.050
- Cobalt #1E488F ΔE 0.060
- Royal #0C1793 ΔE 0.061
- Sapphire #2138AB ΔE 0.067
- Marine #042E60 ΔE 0.068
- Midnight Blue #191970 ΔE 0.075
- Light Navy #155084 ΔE 0.080
Use #033586 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.