#1991FA
Closest named color: Dodger Blue (#1E90FF). oklch(65% 0.184 251.6), rgb(25, 145, 250).
Aa
Black text reads best on this color (6.47:1).
About this color
#1991FA is a medium-light, vivid blue. In OKLCH its lightness is 65%, its chroma 0.184 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.008 away. Black text reads best on it, at 6.47:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.184) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 6.47:1 |
| White text | 3.24:1 |
Values
| HEX | #1991FA |
| RGB | rgb(25, 145, 250) |
| HSL | hsl(208, 96%, 54%) |
| OKLCH | oklch(65% 0.184 251.6) |
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 #1991FA | 3.24:1 | AA large text | Lc -64.5 | Content text, not long reading |
| Black text on #1991FA | 6.47:1 | AA | Lc 45.0 | Non-text elements, placeholder text |
| #1991FA text on white | 3.24:1 | AA large text | Lc 59.1 | Large or bold text, headings |
| #1991FA text on black | 6.47:1 | AA | Lc -42.6 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEECFB
oklch(93.7% 0.025 250)
-
Step 200
200
#C2DCFA
oklch(88.5% 0.05 252.1)
-
Step 300
300
#96C5F9
oklch(80.9% 0.089 251.5)
-
Step 400
400
#56A5F7
oklch(70.8% 0.144 251.3)
-
Step 500
500 (this color)
#1991FA
oklch(65% 0.184 251.6)
-
Step 600
600
#0074CF
oklch(55.5% 0.165 251.7)
-
Step 700
700
#0062AF
oklch(49.2% 0.144 251.3)
-
Step 800
800
#005091
oklch(42.8% 0.126 251.5)
-
Step 900
900
#00427A
oklch(37.7% 0.112 251.7)
-
Step 950
950
#03274A
oklch(27% 0.076 251.9)
#1991FA 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) | #5B99FE | 0.050 |
| Deuteranopia (no green cones) | #3086F8 | 0.028 |
| Tritanopia (no blue cones) | #00AAB9 | 0.134 |
| Achromatopsia (no color) | #8F8F8F | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1991FA
#1991FA
oklch(65% 0.184 251.6)
- #C37E00
#C37E00
oklch(65% 0.14 71.3)
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 #1991FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.008
- Chefchaouen Blue #4895EF ΔE 0.033
- Dark Sky Blue #448EE4 ΔE 0.037
- Soft Blue #6488EA ΔE 0.055
- Cornflower Blue #6495ED ΔE 0.056
- Clear Blue #247AFD ΔE 0.059
- Water Blue #0E87CC ΔE 0.072
- Cornflower #6A79F7 ΔE 0.077
Use #1991FA 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.