#064F79
Closest named color: Deep Sea Blue (#015482). oklch(41% 0.095 242.3), rgb(6, 79, 121).
Aa
White text reads best on this color (8.74:1).
About this color
#064F79 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.095 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.019 away. White text reads best on it, at 8.74:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.40:1 |
| White text | 8.74:1 |
Values
| HEX | #064F79 |
| RGB | rgb(6, 79, 121) |
| HSL | hsl(202, 91%, 25%) |
| OKLCH | oklch(41% 0.095 242.3) |
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 #064F79 | 8.74:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #064F79 | 2.40:1 | Fails | Lc 14.5 | Not readable |
| #064F79 text on white | 8.74:1 | AAA | Lc 89.5 | Fine for body text |
| #064F79 text on black | 2.40:1 | Fails | Lc -12.8 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C8DCEC
oklch(88.4% 0.031 242)
-
Step 300
300
#A2C6E2
oklch(81% 0.055 241.8)
-
Step 400
400
#6DA7D3
oklch(70.6% 0.089 242.3)
-
Step 500
500
#4291C8
oklch(63.1% 0.113 242)
-
Step 600
600
#1A7AB5
oklch(55.6% 0.124 242.4)
-
Step 700
700
#07669C
oklch(49% 0.116 242.8)
-
Step 800
800 (this color)
#064F79
oklch(41% 0.095 242.3)
-
Step 900
900
#174665
oklch(37.8% 0.073 241.6)
-
Step 950
950
#0F293B
oklch(27% 0.046 241.6)
#064F79 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) | #3B507B | 0.044 |
| Deuteranopia (no green cones) | #2B4778 | 0.031 |
| Tritanopia (no blue cones) | #00595E | 0.063 |
| Achromatopsia (no color) | #4B4B4B | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #064F79
#064F79
oklch(41% 0.095 242.3)
- #6E3D00
#6E3D00
oklch(41.2% 0.094 62.4)
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 #064F79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.019
- Light Navy #155084 ΔE 0.020
- Twilight Blue #0A437A ΔE 0.037
- Dusk Blue #26538D ΔE 0.041
- Cobalt #1E488F ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.053
- Deep Teal #00555A ΔE 0.062
Use #064F79 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.