#1C84BD
Closest named color: Water Blue (#0E87CC). oklch(58.5% 0.124 239.5), rgb(28, 132, 189).
Aa
Black text reads best on this color (5.08:1).
About this color
#1C84BD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.124 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.023 away. Black text reads best on it, at 5.08:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.08:1 |
| White text | 4.13:1 |
Values
| HEX | #1C84BD |
| RGB | rgb(28, 132, 189) |
| HSL | hsl(201, 74%, 43%) |
| OKLCH | oklch(58.5% 0.124 239.5) |
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 #1C84BD | 4.13:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #1C84BD | 5.08:1 | AA | Lc 36.1 | Non-text elements, placeholder text |
| #1C84BD text on white | 4.13:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #1C84BD text on black | 5.08:1 | AA | Lc -33.7 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF4
oklch(93.7% 0.016 239.1)
-
Step 200
200
#C7DCEC
oklch(88.4% 0.032 240.7)
-
Step 300
300
#A0C6E1
oklch(80.8% 0.056 239.3)
-
Step 400
400
#6AA8D3
oklch(70.6% 0.09 240)
-
Step 500
500
#3C92C7
oklch(63.1% 0.114 239.4)
-
Step 600
600 (this color)
#1C84BD
oklch(58.5% 0.124 239.5)
-
Step 700
700
#006799
oklch(49% 0.112 240)
-
Step 800
800
#03557D
oklch(42.8% 0.095 238.9)
-
Step 900
900
#124665
oklch(37.7% 0.075 239.9)
-
Step 950
950
#0D293B
oklch(26.9% 0.047 240.1)
#1C84BD 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) | #6985C0 | 0.065 |
| Deuteranopia (no green cones) | #5376BC | 0.051 |
| Tritanopia (no blue cones) | #009298 | 0.081 |
| Achromatopsia (no color) | #7D7D7D | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C84BD
#1C84BD
oklch(58.5% 0.124 239.5)
- #B06720
#B06720
oklch(58.4% 0.124 59.5)
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 #1C84BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.023
- Blue NCS #118AB2 ΔE 0.028
- Steel Blue #4682B4 ΔE 0.028
- Cool Blue #4984B8 ΔE 0.029
- Nice Blue #107AB0 ΔE 0.033
- Windows Blue #3778BF ΔE 0.036
- Off Blue #5684AE ΔE 0.046
- Flat Blue #3C73A8 ΔE 0.052
Use #1C84BD 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.