#064787
Closest named color: Cobalt (#1E488F). oklch(40% 0.122 254), rgb(6, 71, 135).
Aa
White text reads best on this color (9.29:1).
About this color
#064787 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.122 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.020 away. White text reads best on it, at 9.29:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.25:1 |
| White text | 9.29:1 |
Values
| HEX | #064787 |
| RGB | rgb(6, 71, 135) |
| HSL | hsl(210, 91%, 28%) |
| OKLCH | oklch(40% 0.122 254) |
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 #064787 | 9.29:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #064787 | 2.25:1 | Fails | Lc 13.1 | Not readable |
| #064787 text on white | 9.29:1 | AAA | Lc 90.9 | Preferred for body text |
| #064787 text on black | 2.25:1 | Fails | Lc -11.4 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFC
oklch(93.5% 0.027 255.1)
-
Step 200
200
#C3DCFB
oklch(88.6% 0.051 253.9)
-
Step 300
300
#97C4FB
oklch(80.8% 0.092 253.8)
-
Step 400
400
#5AA3F9
oklch(70.6% 0.146 253.8)
-
Step 500
500
#1D89F7
oklch(63.2% 0.188 254)
-
Step 600
600
#0072D7
oklch(55.6% 0.177 254)
-
Step 700
700
#0060B6
oklch(49.2% 0.156 253.8)
-
Step 800
800
#004E96
oklch(42.7% 0.135 253.8)
-
Step 900
900 (this color)
#064787
oklch(40% 0.122 254)
-
Step 950
950
#05264B
oklch(26.9% 0.078 254.4)
#064787 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) | #234D89 | 0.027 |
| Deuteranopia (no green cones) | #004286 | 0.015 |
| Tritanopia (no blue cones) | #005760 | 0.092 |
| Achromatopsia (no color) | #474747 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #064787
#064787
oklch(40% 0.122 254)
- #623F00
#623F00
oklch(39.9% 0.085 73.8)
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 #064787, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.020
- Twilight Blue #0A437A ΔE 0.023
- Light Navy #155084 ΔE 0.030
- Deep Sea Blue #015482 ΔE 0.041
- Dusk Blue #26538D ΔE 0.044
- Marine Blue #01386A ΔE 0.064
- Light Navy Blue #2E5A88 ΔE 0.067
- Blueberry #464196 ΔE 0.069
Use #064787 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.