#104B97
Closest named color: Cobalt (#1E488F). oklch(42.3% 0.138 257.3), rgb(16, 75, 151).
Aa
White text reads best on this color (8.48:1).
About this color
#104B97 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.138 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.016 away. White text reads best on it, at 8.48:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.47:1 |
| White text | 8.48:1 |
Values
| HEX | #104B97 |
| RGB | rgb(16, 75, 151) |
| HSL | hsl(214, 81%, 33%) |
| OKLCH | oklch(42.3% 0.138 257.3) |
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 #104B97 | 8.48:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #104B97 | 2.47:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #104B97 text on white | 8.48:1 | AAA | Lc 88.6 | Fine for body text |
| #104B97 text on black | 2.47:1 | Fails | Lc -13.5 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C7DBF7
oklch(88.5% 0.044 256.8)
-
Step 300
300
#A0C3F5
oklch(80.9% 0.081 257.3)
-
Step 400
400
#6BA2F0
oklch(70.7% 0.129 257.2)
-
Step 500
500
#4288EB
oklch(63.1% 0.165 257.6)
-
Step 600
600
#1E6FD9
oklch(55.5% 0.179 257.4)
-
Step 700
700
#0F5DBC
oklch(49.2% 0.165 257.1)
-
Step 800
800 (this color)
#104B97
oklch(42.3% 0.138 257.3)
-
Step 900
900
#174079
oklch(37.6% 0.107 257.5)
-
Step 950
950
#0F2647
oklch(27% 0.068 257.7)
#104B97 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) | #1C539A | 0.025 |
| Deuteranopia (no green cones) | #004796 | 0.014 |
| Tritanopia (no blue cones) | #005E6A | 0.105 |
| Achromatopsia (no color) | #4D4D4D | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #104B97
#104B97
oklch(42.3% 0.138 257.3)
- #684600
#684600
oklch(42.2% 0.088 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 #104B97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.016
- Dusk Blue #26538D ΔE 0.035
- Light Navy #155084 ΔE 0.037
- Deep Sea Blue #015482 ΔE 0.047
- Twilight Blue #0A437A ΔE 0.052
- Sapphire #2138AB ΔE 0.057
- Blueberry #464196 ΔE 0.058
- Light Navy Blue #2E5A88 ΔE 0.061
Use #104B97 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.