#004FA6
Closest named color: Cobalt (#1E488F). oklch(44.2% 0.155 256.8), rgb(0, 79, 166).
Aa
White text reads best on this color (7.86:1).
About this color
#004FA6 is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.155 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.041 away. White text reads best on it, at 7.86:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.66:1 |
| White text | 7.86:1 |
Values
| HEX | #004FA6 |
| RGB | rgb(0, 79, 166) |
| HSL | hsl(211, 100%, 33%) |
| OKLCH | oklch(44.2% 0.155 256.8) |
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 #004FA6 | 7.86:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #004FA6 | 2.66:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #004FA6 text on white | 7.86:1 | AAA | Lc 86.5 | Fine for body text |
| #004FA6 text on black | 2.66:1 | Fails | Lc -15.6 | Dividers and decoration only |
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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFC
oklch(93.6% 0.026 257)
-
Step 200
200
#C4DBFB
oklch(88.5% 0.051 256.7)
-
Step 300
300
#9BC3FB
oklch(80.9% 0.091 256.9)
-
Step 400
400
#62A2F9
oklch(70.8% 0.144 256.5)
-
Step 500
500
#3187F7
oklch(63.1% 0.186 256.8)
-
Step 600
600
#006EE2
oklch(55.6% 0.196 256.8)
-
Step 700
700
#005CC0
oklch(49.1% 0.174 256.9)
-
Step 800
800 (this color)
#004FA6
oklch(44.2% 0.155 256.8)
-
Step 900
900
#0B3F80
oklch(37.6% 0.122 257)
-
Step 950
950
#0A264B
oklch(27.1% 0.076 256.8)
#004FA6 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) | #0D59A9 | 0.029 |
| Deuteranopia (no green cones) | #004BA4 | 0.011 |
| Tritanopia (no blue cones) | #006573 | 0.117 |
| Achromatopsia (no color) | #525252 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004FA6
#004FA6
oklch(44.2% 0.155 256.8)
- #6F4B00
#6F4B00
oklch(44.2% 0.092 77.2)
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 #004FA6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.041
- Dusk Blue #26538D ΔE 0.048
- Sapphire #2138AB ΔE 0.055
- Light Navy #155084 ΔE 0.056
- Blue Blue #2242C7 ΔE 0.062
- Deep Sea Blue #015482 ΔE 0.063
- Denim Blue #3B5B92 ΔE 0.067
- Blueberry #464196 ΔE 0.067
Use #004FA6 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.