#198EC2
Closest named color: Blue NCS (#118AB2). oklch(61.1% 0.123 234.7), rgb(25, 142, 194).
Aa
Black text reads best on this color (5.68:1).
About this color
#198EC2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.123 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.026 away. Black text reads best on it, at 5.68:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.68:1 |
| White text | 3.69:1 |
Values
| HEX | #198EC2 |
| RGB | rgb(25, 142, 194) |
| HSL | hsl(198, 77%, 43%) |
| OKLCH | oklch(61.1% 0.123 234.7) |
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 #198EC2 | 3.69:1 | AA large text | Lc -69.5 | Content text, not long reading |
| Black text on #198EC2 | 5.68:1 | AA | Lc 40.1 | Non-text elements, placeholder text |
| #198EC2 text on white | 3.69:1 | AA large text | Lc 64.0 | Content text, not long reading |
| #198EC2 text on black | 5.68:1 | AA | Lc -37.7 | 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 500.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#DFECF4
oklch(93.6% 0.018 234.5)
-
Step 200
200
#C5DDEC
oklch(88.4% 0.033 235.2)
-
Step 300
300
#9BC8E2
oklch(81% 0.06 233.8)
-
Step 400
400
#60AAD4
oklch(70.6% 0.096 235.2)
-
Step 500
500 (this color)
#198EC2
oklch(61.1% 0.123 234.7)
-
Step 600
600
#007DAE
oklch(55.7% 0.118 234.9)
-
Step 700
700
#006993
oklch(49.2% 0.104 234.9)
-
Step 800
800
#005679
oklch(42.8% 0.09 234.7)
-
Step 900
900
#004765
oklch(37.6% 0.08 234.9)
-
Step 950
950
#062A3B
oklch(26.9% 0.05 233.9)
#198EC2 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) | #748DC4 | 0.074 |
| Deuteranopia (no green cones) | #5F7EC1 | 0.062 |
| Tritanopia (no blue cones) | #009CA0 | 0.076 |
| Achromatopsia (no color) | #858585 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #198EC2
#198EC2
oklch(61.1% 0.123 234.7)
- #BB6D32
#BB6D32
oklch(61.1% 0.123 54.8)
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 #198EC2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.026
- Water Blue #0E87CC ΔE 0.028
- Cool Blue #4984B8 ΔE 0.036
- Steel Blue #4682B4 ΔE 0.039
- Off Blue #5684AE ΔE 0.048
- Dusty Blue #5A86AD ΔE 0.050
- Faded Blue #658CBB ΔE 0.055
- Teal Blue #01889F ΔE 0.055
Use #198EC2 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.