#1600C5
Closest named color: True Blue (#010FCC). oklch(37.7% 0.254 267.1), rgb(22, 0, 197).
Aa
White text reads best on this color (11.41:1).
About this color
#1600C5 is a dark, vivid blue. In OKLCH its lightness is 38%, its chroma 0.254 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is True Blue (#010FCC), ΔE 0.018 away. White text reads best on it, at 11.41:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | vivid (0.254) |
| Temperature | cool |
| Nearest name | True Blue (#010FCC) |
| Black text | 1.84:1 |
| White text | 11.41:1 |
Values
| HEX | #1600C5 |
| RGB | rgb(22, 0, 197) |
| HSL | hsl(247, 100%, 39%) |
| OKLCH | oklch(37.7% 0.254 267.1) |
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 #1600C5 | 11.41:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #1600C5 | 1.84:1 | Fails | Lc 10.7 | Not readable |
| #1600C5 text on white | 11.41:1 | AAA | Lc 93.2 | Preferred for body text |
| #1600C5 text on black | 1.84:1 | Fails | Lc -9.2 | 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
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFF
oklch(93.7% 0.03 267.2)
-
Step 200
200
#C9D9FF
oklch(88.6% 0.055 267.2)
-
Step 300
300
#A5BFFF
oklch(80.9% 0.095 267.2)
-
Step 400
400
#769BFF
oklch(70.7% 0.152 267.2)
-
Step 500
500
#547EFF
oklch(63.1% 0.197 267)
-
Step 600
600
#355CFF
oklch(55.6% 0.244 267)
-
Step 700
700
#2333FF
oklch(49.1% 0.287 267.1)
-
Step 800
800
#1C00E8
oklch(42.7% 0.287 267.1)
-
Step 900
900 (this color)
#1600C5
oklch(37.7% 0.254 267.1)
-
Step 950
950
#090F73
oklch(27% 0.161 267.1)
#1600C5 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) | #0043C9 | 0.084 |
| Deuteranopia (no green cones) | #002FC2 | 0.043 |
| Tritanopia (no blue cones) | #005172 | 0.190 |
| Achromatopsia (no color) | #3A3A3A | 0.256 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1600C5
#1600C5
oklch(37.7% 0.254 267.1)
- #533E00
#533E00
oklch(37.6% 0.077 86.9)
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 #1600C5, closest first.
No curated palette has a color within ΔE 0.04 of #1600C5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- True Blue #010FCC ΔE 0.018
- Medium Blue #0000CD ΔE 0.019
- Ultramarine #2000B1 ΔE 0.036
- Ultramarine Blue #1805DB ΔE 0.038
- Pure Blue #0203E2 ΔE 0.050
- Cobalt Blue #030AA7 ΔE 0.053
- Indigo Blue #3A18B1 ΔE 0.065
- Sapphire #2138AB ΔE 0.076
Use #1600C5 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.