#104779
Closest named color: Twilight Blue (#0A437A). oklch(39.1% 0.101 250.7), rgb(16, 71, 121).
Aa
White text reads best on this color (9.54:1).
About this color
#104779 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.101 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.013 away. White text reads best on it, at 9.54:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.19:1 |
| White text | 9.54:1 |
Values
| HEX | #104779 |
| RGB | rgb(16, 71, 121) |
| HSL | hsl(209, 77%, 27%) |
| OKLCH | oklch(39.1% 0.101 250.7) |
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 #104779 | 9.54:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #104779 | 2.19:1 | Fails | Lc 12.3 | Not readable |
| #104779 text on white | 9.54:1 | AAA | Lc 91.7 | Preferred for body text |
| #104779 text on black | 2.19:1 | Fails | Lc -10.7 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#DFEBF8
oklch(93.5% 0.022 250.2)
-
Step 200
200
#C5DCF5
oklch(88.5% 0.042 250.5)
-
Step 300
300
#9CC5F0
oklch(80.9% 0.075 250)
-
Step 400
400
#63A5E9
oklch(70.6% 0.121 250.6)
-
Step 500
500
#318DE3
oklch(63.2% 0.155 250.6)
-
Step 600
600
#0075CD
oklch(55.6% 0.161 250.9)
-
Step 700
700
#0062AD
oklch(49.1% 0.142 250.8)
-
Step 800
800
#00508F
oklch(42.6% 0.123 250.8)
-
Step 900
900 (this color)
#104779
oklch(39.1% 0.101 250.7)
-
Step 950
950
#0A2844
oklch(27.1% 0.063 250.1)
#104779 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) | #2F4A7B | 0.030 |
| Deuteranopia (no green cones) | #1D4178 | 0.018 |
| Tritanopia (no blue cones) | #00535A | 0.074 |
| Achromatopsia (no color) | #454545 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #104779
#104779
oklch(39.1% 0.101 250.7)
- #613C00
#613C00
oklch(39.1% 0.084 70.8)
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 #104779, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.013
- Light Navy #155084 ΔE 0.031
- Cobalt #1E488F ΔE 0.039
- Deep Sea Blue #015482 ΔE 0.039
- Dusk Blue #26538D ΔE 0.051
- Marine Blue #01386A ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.053
- Charcoal #264653 ΔE 0.066
Use #104779 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.