#2184AF
Closest named color: Blue NCS (#118AB2). oklch(57.8% 0.108 232.6), rgb(33, 132, 175).
Aa
Black text reads best on this color (4.98:1).
About this color
#2184AF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.108 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.017 away. Black text reads best on it, at 4.98:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 4.98:1 |
| White text | 4.21:1 |
Values
| HEX | #2184AF |
| RGB | rgb(33, 132, 175) |
| HSL | hsl(198, 68%, 41%) |
| OKLCH | oklch(57.8% 0.108 232.6) |
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 #2184AF | 4.21:1 | AA large text | Lc -74.2 | Content text, not long reading |
| Black text on #2184AF | 4.98:1 | AA | Lc 35.4 | Non-text elements, placeholder text |
| #2184AF text on white | 4.21:1 | AA large text | Lc 68.7 | Content text, not long reading |
| #2184AF text on black | 4.98:1 | AA | Lc -33.0 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C8DDE8
oklch(88.5% 0.027 230.4)
-
Step 300
300
#A2C7DB
oklch(80.9% 0.049 231.7)
-
Step 400
400
#6DA9C9
oklch(70.6% 0.078 232.7)
-
Step 500
500
#4194BC
oklch(63.2% 0.1 232.4)
-
Step 600
600 (this color)
#2184AF
oklch(57.8% 0.108 232.6)
-
Step 700
700
#006990
oklch(49% 0.101 232.9)
-
Step 800
800
#0B5675
oklch(42.7% 0.084 232.8)
-
Step 900
900
#15475E
oklch(37.6% 0.065 232.4)
-
Step 950
950
#0F2A37
oklch(27.1% 0.041 231.9)
#2184AF 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) | #6E83B1 | 0.069 |
| Deuteranopia (no green cones) | #5C76AE | 0.058 |
| Tritanopia (no blue cones) | #009093 | 0.065 |
| Achromatopsia (no color) | #7B7B7B | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2184AF
#2184AF
oklch(57.8% 0.108 232.6)
- #AB6638
#AB6638
oklch(57.8% 0.108 52.6)
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 #2184AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.017
- Steel Blue #4682B4 ΔE 0.027
- Nice Blue #107AB0 ΔE 0.032
- Teal Blue #01889F ΔE 0.032
- Cool Blue #4984B8 ΔE 0.033
- Cerulean #457B9D ΔE 0.037
- Off Blue #5684AE ΔE 0.040
- Stormy Blue #507B9C ΔE 0.043
Use #2184AF 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.